diff --git a/docs/generators/groovy.md b/docs/generators/groovy.md
index e5ac52bafbab..3f70cb80e3d7 100644
--- a/docs/generators/groovy.md
+++ b/docs/generators/groovy.md
@@ -35,6 +35,7 @@ sidebar_label: groovy
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/java-inflector.md b/docs/generators/java-inflector.md
index 6ec301dc8095..d04e019e84f1 100644
--- a/docs/generators/java-inflector.md
+++ b/docs/generators/java-inflector.md
@@ -37,6 +37,7 @@ sidebar_label: java-inflector
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/java-msf4j.md b/docs/generators/java-msf4j.md
index bc9bb52f2fbc..a5ce2dac3e2c 100644
--- a/docs/generators/java-msf4j.md
+++ b/docs/generators/java-msf4j.md
@@ -37,6 +37,7 @@ sidebar_label: java-msf4j
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/java-pkmst.md b/docs/generators/java-pkmst.md
index 0c8fd296c3b6..a83c49edf6ad 100644
--- a/docs/generators/java-pkmst.md
+++ b/docs/generators/java-pkmst.md
@@ -37,6 +37,7 @@ sidebar_label: java-pkmst
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|threetenbp|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/java-play-framework.md b/docs/generators/java-play-framework.md
index 242f25b22131..452c2eabff43 100644
--- a/docs/generators/java-play-framework.md
+++ b/docs/generators/java-play-framework.md
@@ -37,6 +37,7 @@ sidebar_label: java-play-framework
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|threetenbp|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/java-undertow-server.md b/docs/generators/java-undertow-server.md
index dc99309dbdf9..418719af2a6d 100644
--- a/docs/generators/java-undertow-server.md
+++ b/docs/generators/java-undertow-server.md
@@ -37,6 +37,7 @@ sidebar_label: java-undertow-server
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/java-vertx.md b/docs/generators/java-vertx.md
index e3d2946a3a90..dd2cc7afb85b 100644
--- a/docs/generators/java-vertx.md
+++ b/docs/generators/java-vertx.md
@@ -37,6 +37,7 @@ sidebar_label: java-vertx
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|java8|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/java.md b/docs/generators/java.md
index bb4b92d6ffee..07f9033897d1 100644
--- a/docs/generators/java.md
+++ b/docs/generators/java.md
@@ -37,6 +37,7 @@ sidebar_label: java
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|threetenbp|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-cxf-cdi.md b/docs/generators/jaxrs-cxf-cdi.md
index 78d31c8573d4..ff67b0bade35 100644
--- a/docs/generators/jaxrs-cxf-cdi.md
+++ b/docs/generators/jaxrs-cxf-cdi.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-cxf-cdi
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-cxf-client.md b/docs/generators/jaxrs-cxf-client.md
index af5175db6229..5a93cd58f655 100644
--- a/docs/generators/jaxrs-cxf-client.md
+++ b/docs/generators/jaxrs-cxf-client.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-cxf-client
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-cxf-extended.md b/docs/generators/jaxrs-cxf-extended.md
index e81cde7b5133..43833d86160a 100644
--- a/docs/generators/jaxrs-cxf-extended.md
+++ b/docs/generators/jaxrs-cxf-extended.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-cxf-extended
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-cxf.md b/docs/generators/jaxrs-cxf.md
index 346dce1aa941..bc44d5ad36b9 100644
--- a/docs/generators/jaxrs-cxf.md
+++ b/docs/generators/jaxrs-cxf.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-cxf
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-jersey.md b/docs/generators/jaxrs-jersey.md
index a3172382b7cd..a451f8514b01 100644
--- a/docs/generators/jaxrs-jersey.md
+++ b/docs/generators/jaxrs-jersey.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-jersey
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-resteasy-eap.md b/docs/generators/jaxrs-resteasy-eap.md
index 7924fb953cd9..618500c88188 100644
--- a/docs/generators/jaxrs-resteasy-eap.md
+++ b/docs/generators/jaxrs-resteasy-eap.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-resteasy-eap
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-resteasy.md b/docs/generators/jaxrs-resteasy.md
index c85dc5cc3082..6f2a45446a34 100644
--- a/docs/generators/jaxrs-resteasy.md
+++ b/docs/generators/jaxrs-resteasy.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-resteasy
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/jaxrs-spec.md b/docs/generators/jaxrs-spec.md
index 8d338ebfef85..ab3c1ed991d2 100644
--- a/docs/generators/jaxrs-spec.md
+++ b/docs/generators/jaxrs-spec.md
@@ -37,6 +37,7 @@ sidebar_label: jaxrs-spec
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|legacy|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/docs/generators/spring.md b/docs/generators/spring.md
index 51e46424f06d..73cc7d9e50d0 100644
--- a/docs/generators/spring.md
+++ b/docs/generators/spring.md
@@ -37,6 +37,7 @@ sidebar_label: spring
 |dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app only)</dd><dt>**legacy**</dt><dd>Legacy java.util.Date (if you really have a good reason not to use threetenbp</dd><dt>**java8-localdatetime**</dt><dd>Java 8 using LocalDateTime (for legacy app only)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets &quot;java8&quot; to true</dd><dt>**threetenbp**</dt><dd>Backport of JSR310 (preferred for jdk &lt; 1.8)</dd><dl>|threetenbp|
 |java8|Option. Use Java8 classes instead of third party equivalents|<dl><dt>**true**</dt><dd>Use Java 8 classes such as Base64. Use java8 default interface when a responseWrapper is used</dd><dt>**false**</dt><dd>Various third party libraries as needed</dd><dl>|false|
 |disableHtmlEscaping|Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)| |false|
+|disableAdditionalFieldsAnnotation|Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.| |false|
 |booleanGetterPrefix|Set booleanGetterPrefix| |get|
 |parentGroupId|parent groupId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
 |parentArtifactId|parent artifactId in generated pom N.B. parentGroupId, parentArtifactId and parentVersion must all be specified for any of them to take effect| |null|
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java
index d47c22925cd4..b6cbe345667e 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java
@@ -51,6 +51,7 @@ public abstract class AbstractJavaCodegen extends DefaultCodegen implements Code
     public static final String WITH_XML = "withXml";
     public static final String SUPPORT_JAVA6 = "supportJava6";
     public static final String DISABLE_HTML_ESCAPING = "disableHtmlEscaping";
+    public static final String DISABLE_ADDITIONAL_FIELDS_ANNOTATION = "disableAdditionalFieldsAnnotation";
     public static final String BOOLEAN_GETTER_PREFIX = "booleanGetterPrefix";
     public static final String USE_NULL_FOR_UNKNOWN_ENUM_VALUE = "useNullForUnknownEnumValue";
 
@@ -85,6 +86,7 @@ public abstract class AbstractJavaCodegen extends DefaultCodegen implements Code
     protected String modelDocPath = "docs/";
     protected boolean supportJava6 = false;
     protected boolean disableHtmlEscaping = false;
+    protected boolean disableAdditionalFieldsAnnotation = false;
     protected String booleanGetterPrefix = "get";
     protected boolean useNullForUnknownEnumValue = false;
     protected String parentGroupId = "";
@@ -183,6 +185,7 @@ public AbstractJavaCodegen() {
         cliOptions.add(java8Mode);
 
         cliOptions.add(CliOption.newBoolean(DISABLE_HTML_ESCAPING, "Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)", disableHtmlEscaping));
+        cliOptions.add(CliOption.newBoolean(DISABLE_ADDITIONAL_FIELDS_ANNOTATION, "Disables the @JsonIgnoreProperties(ignoreUnknown = true) annotation.", disableAdditionalFieldsAnnotation));
         cliOptions.add(CliOption.newString(BOOLEAN_GETTER_PREFIX, "Set booleanGetterPrefix").defaultValue(this.getBooleanGetterPrefix()));
 
         cliOptions.add(CliOption.newString(CodegenConstants.PARENT_GROUP_ID, CodegenConstants.PARENT_GROUP_ID_DESC));
@@ -216,6 +219,11 @@ public void processOpts() {
         }
         additionalProperties.put(DISABLE_HTML_ESCAPING, disableHtmlEscaping);
 
+        if (additionalProperties.containsKey(DISABLE_ADDITIONAL_FIELDS_ANNOTATION)) {
+            this.setDisableAdditionalFieldsAnnotation(Boolean.valueOf(additionalProperties.get(DISABLE_ADDITIONAL_FIELDS_ANNOTATION).toString()));
+        }
+        additionalProperties.put(DISABLE_ADDITIONAL_FIELDS_ANNOTATION, disableAdditionalFieldsAnnotation);
+
         if (additionalProperties.containsKey(BOOLEAN_GETTER_PREFIX)) {
             this.setBooleanGetterPrefix(additionalProperties.get(BOOLEAN_GETTER_PREFIX).toString());
         }
@@ -1397,6 +1405,10 @@ public void setDisableHtmlEscaping(boolean disabled) {
         this.disableHtmlEscaping = disabled;
     }
 
+    public void setDisableAdditionalFieldsAnnotation(boolean disabled) {
+        this.disableAdditionalFieldsAnnotation = disabled;
+    }
+
     public String getBooleanGetterPrefix() {
         return booleanGetterPrefix;
     }
diff --git a/modules/openapi-generator/src/main/resources/Java/model.mustache b/modules/openapi-generator/src/main/resources/Java/model.mustache
index 08429bb58dea..e8aadd4f0fac 100644
--- a/modules/openapi-generator/src/main/resources/Java/model.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/model.mustache
@@ -20,6 +20,9 @@ import {{import}};
 import java.io.Serializable;
 {{/serializableModel}}
 {{#jackson}}
+{{^disableAdditionalFieldsAnnotation}}
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+{{/disableAdditionalFieldsAnnotation}}
 {{#withXml}}
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 {{/withXml}}
diff --git a/modules/openapi-generator/src/main/resources/Java/pojo.mustache b/modules/openapi-generator/src/main/resources/Java/pojo.mustache
index 276de9b66eea..24fd69367c54 100644
--- a/modules/openapi-generator/src/main/resources/Java/pojo.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/pojo.mustache
@@ -3,6 +3,11 @@
  */{{#description}}
 @ApiModel(description = "{{{description}}}"){{/description}}
 {{>generatedAnnotation}}{{#discriminator}}{{>typeInfoAnnotation}}{{/discriminator}}{{>xmlAnnotation}}
+{{#jackson}}
+{{^disableAdditionalFieldsAnnotation}}
+@JsonIgnoreProperties(ignoreUnknown = true)
+{{/disableAdditionalFieldsAnnotation}}
+{{/jackson}}
 public class {{classname}} {{#parent}}extends {{{parent}}} {{/parent}}{{#parcelableModel}}implements Parcelable {{#serializableModel}}, Serializable {{/serializableModel}}{{/parcelableModel}}{{^parcelableModel}}{{#serializableModel}}implements Serializable {{/serializableModel}}{{/parcelableModel}}{
 {{#serializableModel}}
   private static final long serialVersionUID = 1L;
diff --git a/modules/openapi-generator/src/main/resources/JavaSpring/model.mustache b/modules/openapi-generator/src/main/resources/JavaSpring/model.mustache
index 60d7d41fe48d..a1ec66fff5ce 100644
--- a/modules/openapi-generator/src/main/resources/JavaSpring/model.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaSpring/model.mustache
@@ -15,6 +15,9 @@ import javax.validation.constraints.*;
 import org.hibernate.validator.constraints.*;
 {{/performBeanValidation}}
 {{#jackson}}
+{{^disableAdditionalFieldsAnnotation}}
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+{{/disableAdditionalFieldsAnnotation}}
 {{#withXml}}
 import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;
 import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
diff --git a/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache b/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache
index 29c35fbc1d73..1593e7dde4f3 100644
--- a/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache
@@ -3,6 +3,11 @@
  */{{#description}}
 @ApiModel(description = "{{{description}}}"){{/description}}
 {{>generatedAnnotation}}{{#discriminator}}{{>typeInfoAnnotation}}{{/discriminator}}{{>xmlAnnotation}}
+{{#jackson}}
+{{^disableAdditionalFieldsAnnotation}}
+@JsonIgnoreProperties(ignoreUnknown = true)
+{{/disableAdditionalFieldsAnnotation}}
+{{/jackson}}
 public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}}{{^parent}}{{#hateoas}}extends ResourceSupport {{/hateoas}}{{/parent}} {{#serializableModel}}implements Serializable{{/serializableModel}} {
 {{#serializableModel}}
   private static final long serialVersionUID = 1L;
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/java/jaxrs/JavaJAXRSCXFExtServerCodegenTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/java/jaxrs/JavaJAXRSCXFExtServerCodegenTest.java
index d82604870343..428eb3c834d5 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/java/jaxrs/JavaJAXRSCXFExtServerCodegenTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/java/jaxrs/JavaJAXRSCXFExtServerCodegenTest.java
@@ -43,6 +43,10 @@ public boolean isAddConsumesProducesJson() {
         public boolean isDisableHtmlEscaping() {
             return disableHtmlEscaping;
         }
+        // AbstractJavaCodegen.DISABLE_ADDITIONAL_FIELD_ANNOTATION
+        public boolean isDisableAdditionalFieldsAnnotation() {
+            return disableAdditionalFieldsAnnotation;
+        }
 
         // AbstractJavaCodegen.FULL_JAVA_UTIL
         public boolean isFullJavaUtil() {
@@ -249,6 +253,7 @@ public void testAdditionalPropertiesPutForConfigValues() throws Exception {
         additionalProperties.put(AbstractJavaCodegen.BOOLEAN_GETTER_PREFIX, "isIt");
         additionalProperties.put(AbstractJavaCodegen.DATE_LIBRARY, "MyDateLibrary");
         additionalProperties.put(AbstractJavaCodegen.DISABLE_HTML_ESCAPING, "true");
+        additionalProperties.put(AbstractJavaCodegen.DISABLE_ADDITIONAL_FIELDS_ANNOTATION, "true");
         additionalProperties.put(AbstractJavaCodegen.FULL_JAVA_UTIL, "true");
         additionalProperties.put(AbstractJavaCodegen.JAVA8_MODE, "true");
         additionalProperties.put(AbstractJavaCodegen.SUPPORT_ASYNC, "true");
@@ -325,6 +330,7 @@ public void testAdditionalPropertiesPutForConfigValues() throws Exception {
         assertEquals(testerCodegen.getBooleanGetterPrefix(), "isIt");
         assertEquals(testerCodegen.getDateLibrary(), "MyDateLibrary");
         assertEquals(testerCodegen.isDisableHtmlEscaping(), true);
+        assertEquals(testerCodegen.isDisableAdditionalFieldsAnnotation(), true);
         assertEquals(testerCodegen.isFullJavaUtil(), true);
         assertEquals(testerCodegen.isJava8Mode(), true);
         assertEquals(testerCodegen.isSupportAsync(), true);
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 406bccc2781b..7b39f7fcf419 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index de49df3fbda0..6e216996048f 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index f4399ff42d00..8a8df7ed3f53 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7483fa96ce0a..74c1c40f3be7 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Cat.java
index 6992ec21cae4..614c190c8b17 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/CatAllOf.java
index 0a5eed53e71d..a3cec39f9f54 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumArrays.java
index 40e31bf3caf4..d36b54f18960 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index bee77a8cec7f..4fab6deb5b2b 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java
index c017f57a8037..61e78c39d353 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MapTest.java
index a7a141bb9b3d..386822b753ba 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index ea930e3e2e71..4960c104506c 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Order.java
index 7867042746e7..f1c1c950a47e 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterComposite.java
index b075f7395a4a..5f8a0e36eea7 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Pet.java
index 63e9b4ff5de1..5c56f436f38a 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 04a11d85a512..89118c0e5ed8 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index a9bf8de8994f..ac7be0fbf05a 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/XmlItem.java
index 2665c57a91ee..407df5256af5 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 406bccc2781b..7b39f7fcf419 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index de49df3fbda0..6e216996048f 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index f4399ff42d00..8a8df7ed3f53 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7483fa96ce0a..74c1c40f3be7 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Cat.java
index 6992ec21cae4..614c190c8b17 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/CatAllOf.java
index 0a5eed53e71d..a3cec39f9f54 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumArrays.java
index 40e31bf3caf4..d36b54f18960 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index bee77a8cec7f..4fab6deb5b2b 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java
index c017f57a8037..61e78c39d353 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MapTest.java
index a7a141bb9b3d..386822b753ba 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index ea930e3e2e71..4960c104506c 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Order.java
index 7867042746e7..f1c1c950a47e 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterComposite.java
index b075f7395a4a..5f8a0e36eea7 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Pet.java
index 63e9b4ff5de1..5c56f436f38a 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 04a11d85a512..89118c0e5ed8 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index a9bf8de8994f..ac7be0fbf05a 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/XmlItem.java
index 2665c57a91ee..407df5256af5 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 406bccc2781b..7b39f7fcf419 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index de49df3fbda0..6e216996048f 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index f4399ff42d00..8a8df7ed3f53 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7483fa96ce0a..74c1c40f3be7 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumArrays.java
index 40e31bf3caf4..d36b54f18960 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index bee77a8cec7f..4fab6deb5b2b 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java
index c017f57a8037..61e78c39d353 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MapTest.java
index a7a141bb9b3d..386822b753ba 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index ea930e3e2e71..4960c104506c 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Order.java
index 9e935d606ef1..7941c78958b0 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Pet.java
index 63e9b4ff5de1..5c56f436f38a 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index d8c7b3efdd2c..5e5d246ac697 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index c1d5ea30f82e..7fd9fffaaddd 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/XmlItem.java
index ce4af3e8b9b3..ae617ebaed05 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 406bccc2781b..7b39f7fcf419 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index de49df3fbda0..6e216996048f 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index f4399ff42d00..8a8df7ed3f53 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7483fa96ce0a..74c1c40f3be7 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumArrays.java
index e0b5a0b76049..6d9d2886776c 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumClass.java
index 5633f0280516..de5024d12f99 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumTest.java
index 3d5976cb9e48..313cde83a541 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index bee77a8cec7f..4fab6deb5b2b 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java
index c017f57a8037..61e78c39d353 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MapTest.java
index 65ab3afca0c0..26974c2ed852 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index ea930e3e2e71..4960c104506c 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Order.java
index 18197114a2d3..f71f07d8522b 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterEnum.java
index f83b0c95877a..82c79a757332 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Pet.java
index 0e52f362375c..5d733f469470 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index d8c7b3efdd2c..5e5d246ac697 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index c1d5ea30f82e..7fd9fffaaddd 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/XmlItem.java
index ce4af3e8b9b3..ae617ebaed05 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 6f77fd208ca7..486e817f6163 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 154f47fc70fc..9f9d218feeff 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -22,11 +22,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index a0bec91daa8e..c7d1d182535e 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index e179b284c173..5f16a4a47b03 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index bb45326e0fd6..d9cc31d57c1b 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index 4dd2fe424899..3d93cebe4580 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -22,11 +22,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index 58987c7c1904..213f61736cd4 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index f923fd81ab2a..175ed44283d6 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Animal.java
index 463999716e10..278eb5ef7590 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Animal.java
@@ -21,6 +21,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -32,6 +33,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index 620e0f045260..489ee544d54b 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -22,11 +22,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index 23ca3ec520c1..d5535177f12d 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -22,11 +22,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayTest.java
index a739327142d3..9d1e7bb45e09 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -22,11 +22,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Capitalization.java
index 4cb3722a0ddc..8760111f6c40 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Cat.java
index b1bc3a3259be..7a805c432159 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Cat.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/CatAllOf.java
index f0b7eba67d3b..5b53b98183ab 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Category.java
index 71b7375870ff..4aa976260401 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Category.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ClassModel.java
index 8a670d59fbda..c5088c1fb01d 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -19,12 +19,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Client.java
index a3a58de1fede..e2e0b869c090 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Client.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Dog.java
index 2d3e7d4fe9f3..660c8f0d4a11 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Dog.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/DogAllOf.java
index 3a33a542dbc1..b1a74bef2ac9 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumArrays.java
index a8b71af7f4d9..63e06ecde167 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumClass.java
index 662427bb0ade..78a43601fb83 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -14,6 +14,7 @@
 package org.openapitools.client.model;
 
 import org.apache.commons.lang3.ObjectUtils;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumTest.java
index a6fa726f6984..67dd86650976 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -20,11 +20,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index 62e4346f1cba..954214c66aa9 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java
index c9688e4e4a23..01e3a05f74e9 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -24,11 +24,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 67943f40664b..7cd1f8e5eb1c 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MapTest.java
index b3e327d66bab..d478b578126b 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MapTest.java
@@ -22,11 +22,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index e6244b5ba088..5c0baaa1dbca 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Model200Response.java
index b6e7dd4bb954..54bb12195dee 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -19,12 +19,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index 828793964ca5..2d135cb2101e 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelReturn.java
index 75e753615006..3800c4c5ccfa 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -19,12 +19,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Name.java
index 9ae7b37e07cb..41b0e8ad7b7d 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Name.java
@@ -19,12 +19,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/NumberOnly.java
index c58c1fd75b55..4f0a0b2398d9 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -20,11 +20,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Order.java
index 55a9be17bf12..4eff9885b716 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Order.java
@@ -20,11 +20,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterComposite.java
index d989f0814621..f1650fd8d817 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -20,11 +20,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterEnum.java
index 46c0003b4e61..4b1980d348c1 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -14,6 +14,7 @@
 package org.openapitools.client.model;
 
 import org.apache.commons.lang3.ObjectUtils;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Pet.java
index 5347514db028..a0c5ec564290 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Pet.java
@@ -23,11 +23,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index 0b4f41ef519e..b5d5e072dec2 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/SpecialModelName.java
index 015646fa518f..9b24ed08e26a 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Tag.java
index 91039783392a..b7293eb98ff6 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/Tag.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 5d457b4179b1..a50d6aa3d4a9 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -22,11 +22,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index c59b6b8408cc..ddd62a5b0689 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -22,11 +22,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/User.java
index 14fa403765a1..715c4e04717d 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/User.java
@@ -19,11 +19,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/XmlItem.java
index db0a1c96d386..455d1d3e07b4 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -22,11 +22,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index fc52759bc836..b37927b9bb49 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<>();
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index 49b5c552506f..07342ccc0398 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index ef2555974df4..df8e440fa809 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayTest.java
index b6b98aa275e7..b18a8174816a 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<>();
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumArrays.java
index fff7f65c7264..6c71b803d65e 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index ebbb0fb9f3bc..dccac3813aa9 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java
index 518432caff16..f3ac4a0fcfc6 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import java.util.UUID;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MapTest.java
index 2caabbea07b4..c509697d09d4 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<>();
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 8d97329c312e..c309523c4c93 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.Map;
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Order.java
index 1735b41d3154..56910cde1816 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.time.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Pet.java
index ace85c42aae7..527e3a47cacc 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 786a681fb321..bd96e1101f4c 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index 701e4db8439c..68fd96415324 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/XmlItem.java
index 2af459e5aed3..73d73faf6fdf 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 406bccc2781b..7b39f7fcf419 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index de49df3fbda0..6e216996048f 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index f4399ff42d00..8a8df7ed3f53 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7483fa96ce0a..74c1c40f3be7 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumArrays.java
index 40e31bf3caf4..d36b54f18960 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index bee77a8cec7f..4fab6deb5b2b 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java
index c017f57a8037..61e78c39d353 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MapTest.java
index a7a141bb9b3d..386822b753ba 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index ea930e3e2e71..4960c104506c 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Order.java
index 9e935d606ef1..7941c78958b0 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Pet.java
index 63e9b4ff5de1..5c56f436f38a 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index d8c7b3efdd2c..5e5d246ac697 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index c1d5ea30f82e..7fd9fffaaddd 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/XmlItem.java
index ce4af3e8b9b3..ae617ebaed05 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 406bccc2781b..7b39f7fcf419 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index de49df3fbda0..6e216996048f 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index f4399ff42d00..8a8df7ed3f53 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7483fa96ce0a..74c1c40f3be7 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumArrays.java
index 40e31bf3caf4..d36b54f18960 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index bee77a8cec7f..4fab6deb5b2b 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java
index c017f57a8037..61e78c39d353 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MapTest.java
index a7a141bb9b3d..386822b753ba 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index ea930e3e2e71..4960c104506c 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Order.java
index 9e935d606ef1..7941c78958b0 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Pet.java
index 63e9b4ff5de1..5c56f436f38a 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index d8c7b3efdd2c..5e5d246ac697 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index c1d5ea30f82e..7fd9fffaaddd 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/XmlItem.java
index ce4af3e8b9b3..ae617ebaed05 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 9cd410caea41..40d2872bb9ac 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "AdditionalPropertiesAnyType")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesAnyType")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 40ec8821a80e..85b2552a14a8 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "AdditionalPropertiesArray")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesArray")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 1572d5e26a50..4e69f737812a 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "AdditionalPropertiesBoolean")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesBoolean")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 1fb68be3492f..3fb4f05a0d21 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,6 +24,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -34,6 +35,7 @@
 @XmlRootElement(name = "AdditionalPropertiesClass")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesClass")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   // Is a container wrapped=false
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6c5869d49a57..ea7962c27214 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "AdditionalPropertiesInteger")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesInteger")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index 2ddabab3ade7..8cd874864653 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "AdditionalPropertiesNumber")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesNumber")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index 57f36622cb21..ba5bf1cb0ca2 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "AdditionalPropertiesObject")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesObject")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index 5040129ccaa0..4c3be145cf05 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "AdditionalPropertiesString")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "AdditionalPropertiesString")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Animal.java
index 6cea07ff0a34..a9ce51b81fba 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -38,6 +39,7 @@
 @XmlRootElement(name = "Animal")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Animal")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   @JacksonXmlProperty(localName = "className")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index b72cc8454159..d0d345359bcf 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "ArrayOfArrayOfNumberOnly")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "ArrayOfArrayOfNumberOnly")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   // Is a container wrapped=false
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index adef6e226e7b..393b39062daf 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "ArrayOfNumberOnly")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "ArrayOfNumberOnly")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   // Is a container wrapped=false
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayTest.java
index 99fb1aae1ead..1a0b97d7d5cc 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,6 +23,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "ArrayTest")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "ArrayTest")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   // Is a container wrapped=false
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Capitalization.java
index bad598c32040..b4ab9ffd56de 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "Capitalization")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Capitalization")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   @JacksonXmlProperty(localName = "smallCamel")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Cat.java
index d7015f214ea8..ac2be5dd4aba 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "Cat")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Cat")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   @JacksonXmlProperty(localName = "declawed")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/CatAllOf.java
index ac93255d17ae..97b5475ffec5 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "CatAllOf")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "CatAllOf")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   @JacksonXmlProperty(localName = "declawed")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Category.java
index 665d1deefc99..4f66b02bff2c 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Category.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "Category")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Category")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   @JacksonXmlProperty(localName = "id")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ClassModel.java
index 928c12ea45d7..deb2dde5c509 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "ClassModel")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "ClassModel")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   @JacksonXmlProperty(localName = "_class")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Client.java
index 017b2fca2676..b4dfa94d6b31 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Client.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "Client")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Client")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   @JacksonXmlProperty(localName = "client")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Dog.java
index 09c52412f456..9701338c3419 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "Dog")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Dog")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   @JacksonXmlProperty(localName = "breed")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/DogAllOf.java
index c62cc1655a43..d85c6931169d 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "DogAllOf")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "DogAllOf")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   @JacksonXmlProperty(localName = "breed")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumArrays.java
index af0d449c65cc..c56374bc41f2 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "EnumArrays")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "EnumArrays")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumClass.java
index a7ffe1f30d5d..1a64f2a9d582 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumTest.java
index 4a3faa788b26..dbed72df1833 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "EnumTest")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "EnumTest")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index 06defab3d59e..b26c70ddef16 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -32,6 +33,7 @@
 @XmlRootElement(name = "FileSchemaTestClass")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "FileSchemaTestClass")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   @JacksonXmlProperty(localName = "file")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java
index c9ec8cfd5ff8..852167d0b01f 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,6 +25,7 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -35,6 +36,7 @@
 @XmlRootElement(name = "FormatTest")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "FormatTest")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   @JacksonXmlProperty(localName = "integer")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 907592d8e886..021d33154ef8 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "HasOnlyReadOnly")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "HasOnlyReadOnly")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   @JacksonXmlProperty(localName = "bar")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MapTest.java
index 812a680e7547..7e46798a70bf 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "MapTest")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "MapTest")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   // Is a container wrapped=false
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 815679fe5f6f..c62ef2610afe 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,6 +26,7 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -36,6 +37,7 @@
 @XmlRootElement(name = "MixedPropertiesAndAdditionalPropertiesClass")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "MixedPropertiesAndAdditionalPropertiesClass")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   @JacksonXmlProperty(localName = "uuid")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Model200Response.java
index 2a3c0b5965de..3414845c7323 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "Name")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Name")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index 5ae9239007d5..08ab0694abc5 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "ModelApiResponse")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "ModelApiResponse")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   @JacksonXmlProperty(localName = "code")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelReturn.java
index 7e3591fe6f21..0e9bb7db7030 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "Return")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Return")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   @JacksonXmlProperty(localName = "return")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Name.java
index 47dbe54104a2..01bfc9a7785b 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Name.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "Name")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Name")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   @JacksonXmlProperty(localName = "name")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/NumberOnly.java
index c2dcc40b6dc2..92b83b95e935 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "NumberOnly")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "NumberOnly")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   @JacksonXmlProperty(localName = "JustNumber")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Order.java
index f41d6cb7f9f6..0c95b79b5694 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Order.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "Order")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Order")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   @JacksonXmlProperty(localName = "id")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterComposite.java
index 412283913c0f..0085f31b5165 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -31,6 +32,7 @@
 @XmlRootElement(name = "OuterComposite")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "OuterComposite")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   @JacksonXmlProperty(localName = "my_number")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterEnum.java
index abd0f0563632..9da219b6ba3d 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Pet.java
index 0953836a6fd3..b411864152dc 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,6 +24,7 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -34,6 +35,7 @@
 @XmlRootElement(name = "Pet")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Pet")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   @JacksonXmlProperty(localName = "id")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index b01224ff9816..6922794748d2 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "ReadOnlyFirst")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "ReadOnlyFirst")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   @JacksonXmlProperty(localName = "bar")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/SpecialModelName.java
index 0dce1b2135cf..40476c1b47a7 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "$special[model.name]")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "$special[model.name]")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   @JacksonXmlProperty(localName = "$special[property.name]")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Tag.java
index 0aeb3e864204..85e735e7c700 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "Tag")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "Tag")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   @JacksonXmlProperty(localName = "id")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 4c40efd2bd8a..39e0c78ce4be 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "TypeHolderDefault")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "TypeHolderDefault")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   @JacksonXmlProperty(localName = "string_item")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index e24eaa0e196b..3e09d391223f 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(name = "TypeHolderExample")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "TypeHolderExample")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   @JacksonXmlProperty(localName = "string_item")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/User.java
index 13acd447aa60..228095498dcc 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/User.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -30,6 +31,7 @@
 @XmlRootElement(name = "User")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(localName = "User")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   @JacksonXmlProperty(localName = "id")
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/XmlItem.java
index ce8aa206a8a8..8bf8f374e8b8 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.dataformat.xml.annotation.*;
 import javax.xml.bind.annotation.*;
 
@@ -33,6 +34,7 @@
 @XmlRootElement(namespace="http://a.com/schema", name = "XmlItem")
 @XmlAccessorType(XmlAccessType.FIELD)
 @JacksonXmlRootElement(namespace="http://a.com/schema", localName = "XmlItem")
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   @JacksonXmlProperty(isAttribute = true, localName = "attribute_string")
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index 406bccc2781b..7b39f7fcf419 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<String, String>();
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index de49df3fbda0..6e216996048f 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<List<BigDecimal>>();
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index f4399ff42d00..8a8df7ed3f53 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<BigDecimal>();
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7483fa96ce0a..74c1c40f3be7 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<String>();
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumArrays.java
index 40e31bf3caf4..d36b54f18960 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index bee77a8cec7f..4fab6deb5b2b 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java
index c017f57a8037..61e78c39d353 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MapTest.java
index a7a141bb9b3d..386822b753ba 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<String, Map<String, String>>();
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index ea930e3e2e71..4960c104506c 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Order.java
index 9e935d606ef1..7941c78958b0 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Pet.java
index 63e9b4ff5de1..5c56f436f38a 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index d8c7b3efdd2c..5e5d246ac697 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index c1d5ea30f82e..7fd9fffaaddd 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/XmlItem.java
index ce4af3e8b9b3..ae617ebaed05 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 3c28034de757..9c2655301613 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index a1b662902c42..18ab9bbca6fd 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 0f73cf6b2b40..d9c929dc17cd 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index b39b92f91619..fc8adb74f19a 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,6 +24,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -31,6 +32,7 @@
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<>();
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index eafdd58e5dcf..3d90c83b967a 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index c166cbef6de5..0930201ab60a 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index 6f7169d2eb66..dc71482b3983 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index 1404d12db63c..62d64edbef9d 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Animal.java
index 72b233aa450b..e8b253251285 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -35,6 +36,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index dcf7fc9f4850..18e7eee2dc10 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index 520a394d26ce..90628a1a1ba3 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7ac5804445e3..b402b17d3a23 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,6 +23,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Capitalization.java
index 473052d303ea..f663e67214ef 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Cat.java
index a0b8ca33855a..a7060fbb4c48 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/CatAllOf.java
index 997a3ef2f4ee..892225932c77 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Category.java
index 6db06530c3d5..dd15ba1fc422 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Category.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ClassModel.java
index 41049c9beef4..42e6c5377a83 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Client.java
index 83962ddde182..5549ad17753b 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Client.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Dog.java
index 845c7aa33930..672aed0b68e7 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1aa1423a9118..325d11ee9bdb 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumArrays.java
index 398db6122314..1445d15a77e9 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumClass.java
index 658c48b7f623..5a6cd62d1d07 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumTest.java
index 88f0ab2b6e11..88a69145cb44 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index 78595f7854c7..257f775534fa 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java
index cbd2563773d1..9d7047cb68f7 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,6 +25,7 @@
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import java.util.UUID;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -32,6 +33,7 @@
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 17fb98f8e739..9f1c65a2be7d 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MapTest.java
index 920717d2129d..d3cec1888998 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<>();
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index fc1d3af28e18..0babb781e548 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,6 +26,7 @@
 import java.util.Map;
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -33,6 +34,7 @@
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Model200Response.java
index ea07d5c6a8c1..1cd362c00627 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index b30186ae730b..fbae46ef8569 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelReturn.java
index a8010bb637cc..94401cdc4c01 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Name.java
index 8f2864ef8f17..ff0c0d38a27c 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Name.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/NumberOnly.java
index 6ebb9d52310e..76053999d2a6 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Order.java
index b276dea919a0..fe406ada21c6 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Order.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.time.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterComposite.java
index 709bad591645..0933a3cfd00c 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterEnum.java
index cde04c1aea85..d5ae6212d66e 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Pet.java
index a77cad038b81..cbecbdbf9c3a 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,6 +24,7 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -31,6 +32,7 @@
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index b8ec9b5b5882..9ee75c2a0f8b 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/SpecialModelName.java
index 37405452a3be..5ed5229e3a09 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Tag.java
index 78c198db1f10..f28840a2df04 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 499efa34b581..eb1122064669 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index 70c0b65d8058..713c9be65d3c 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/User.java
index 6baf32249cbe..5ad0943c1a6f 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/User.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/XmlItem.java
index 71f0e18c5a5a..2f25d280ced3 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 3c28034de757..9c2655301613 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index a1b662902c42..18ab9bbca6fd 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 0f73cf6b2b40..d9c929dc17cd 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index b39b92f91619..fc8adb74f19a 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,6 +24,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -31,6 +32,7 @@
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<>();
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index eafdd58e5dcf..3d90c83b967a 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index c166cbef6de5..0930201ab60a 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index 6f7169d2eb66..dc71482b3983 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index 1404d12db63c..62d64edbef9d 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Animal.java
index 72b233aa450b..e8b253251285 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -35,6 +36,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index dcf7fc9f4850..18e7eee2dc10 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index 520a394d26ce..90628a1a1ba3 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7ac5804445e3..b402b17d3a23 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,6 +23,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Capitalization.java
index 473052d303ea..f663e67214ef 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Cat.java
index a0b8ca33855a..a7060fbb4c48 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/CatAllOf.java
index 997a3ef2f4ee..892225932c77 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Category.java
index 6db06530c3d5..dd15ba1fc422 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Category.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ClassModel.java
index 41049c9beef4..42e6c5377a83 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Client.java
index 83962ddde182..5549ad17753b 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Client.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Dog.java
index 845c7aa33930..672aed0b68e7 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1aa1423a9118..325d11ee9bdb 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumArrays.java
index 398db6122314..1445d15a77e9 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumClass.java
index 658c48b7f623..5a6cd62d1d07 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumTest.java
index 88f0ab2b6e11..88a69145cb44 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index 78595f7854c7..257f775534fa 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java
index 7ec52a2c7fd7..e72448ed165e 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,6 +25,7 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -32,6 +33,7 @@
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 17fb98f8e739..9f1c65a2be7d 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MapTest.java
index 920717d2129d..d3cec1888998 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<>();
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 870ceb97f9c1..d45f0bcc5a4c 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,6 +26,7 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -33,6 +34,7 @@
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Model200Response.java
index ea07d5c6a8c1..1cd362c00627 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index b30186ae730b..fbae46ef8569 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelReturn.java
index a8010bb637cc..94401cdc4c01 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Name.java
index 8f2864ef8f17..ff0c0d38a27c 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Name.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/NumberOnly.java
index 6ebb9d52310e..76053999d2a6 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Order.java
index 1f009a45cf01..4cb70f24bcbf 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Order.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterComposite.java
index 709bad591645..0933a3cfd00c 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterEnum.java
index cde04c1aea85..d5ae6212d66e 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Pet.java
index a77cad038b81..cbecbdbf9c3a 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,6 +24,7 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -31,6 +32,7 @@
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index b8ec9b5b5882..9ee75c2a0f8b 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/SpecialModelName.java
index 37405452a3be..5ed5229e3a09 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Tag.java
index 78c198db1f10..f28840a2df04 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 499efa34b581..eb1122064669 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index 70c0b65d8058..713c9be65d3c 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/User.java
index 6baf32249cbe..5ad0943c1a6f 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/User.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/XmlItem.java
index 71f0e18c5a5a..2f25d280ced3 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 3c28034de757..9c2655301613 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index a1b662902c42..18ab9bbca6fd 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 0f73cf6b2b40..d9c929dc17cd 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index b39b92f91619..fc8adb74f19a 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,6 +24,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -31,6 +32,7 @@
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<>();
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index eafdd58e5dcf..3d90c83b967a 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index c166cbef6de5..0930201ab60a 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index 6f7169d2eb66..dc71482b3983 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index 1404d12db63c..62d64edbef9d 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Animal.java
index 72b233aa450b..e8b253251285 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -35,6 +36,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index dcf7fc9f4850..18e7eee2dc10 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index 520a394d26ce..90628a1a1ba3 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayTest.java
index 7ac5804445e3..b402b17d3a23 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,6 +23,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<>();
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Capitalization.java
index 473052d303ea..f663e67214ef 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Cat.java
index a0b8ca33855a..a7060fbb4c48 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/CatAllOf.java
index 997a3ef2f4ee..892225932c77 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Category.java
index 6db06530c3d5..dd15ba1fc422 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Category.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ClassModel.java
index 41049c9beef4..42e6c5377a83 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Client.java
index 83962ddde182..5549ad17753b 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Client.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Dog.java
index 845c7aa33930..672aed0b68e7 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1aa1423a9118..325d11ee9bdb 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumArrays.java
index 398db6122314..1445d15a77e9 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumClass.java
index 658c48b7f623..5a6cd62d1d07 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumTest.java
index 88f0ab2b6e11..88a69145cb44 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index 78595f7854c7..257f775534fa 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,6 +22,7 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -29,6 +30,7 @@
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java
index 7ec52a2c7fd7..e72448ed165e 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,6 +25,7 @@
 import java.util.UUID;
 import org.threeten.bp.LocalDate;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -32,6 +33,7 @@
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 17fb98f8e739..9f1c65a2be7d 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MapTest.java
index 920717d2129d..d3cec1888998 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,6 +23,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<>();
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 870ceb97f9c1..d45f0bcc5a4c 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,6 +26,7 @@
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -33,6 +34,7 @@
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Model200Response.java
index ea07d5c6a8c1..1cd362c00627 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index b30186ae730b..fbae46ef8569 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelReturn.java
index a8010bb637cc..94401cdc4c01 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Name.java
index 8f2864ef8f17..ff0c0d38a27c 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Name.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/NumberOnly.java
index 6ebb9d52310e..76053999d2a6 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Order.java
index 1f009a45cf01..4cb70f24bcbf 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Order.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.threeten.bp.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterComposite.java
index 709bad591645..0933a3cfd00c 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,6 +21,7 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -28,6 +29,7 @@
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterEnum.java
index cde04c1aea85..d5ae6212d66e 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Pet.java
index a77cad038b81..cbecbdbf9c3a 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,6 +24,7 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -31,6 +32,7 @@
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index b8ec9b5b5882..9ee75c2a0f8b 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/SpecialModelName.java
index 37405452a3be..5ed5229e3a09 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Tag.java
index 78c198db1f10..f28840a2df04 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 499efa34b581..eb1122064669 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index 70c0b65d8058..713c9be65d3c 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/User.java
index 6baf32249cbe..5ad0943c1a6f 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/User.java
@@ -20,6 +20,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -27,6 +28,7 @@
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/XmlItem.java
index 71f0e18c5a5a..2f25d280ced3 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,6 +23,7 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
 
@@ -30,6 +31,7 @@
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index fc52759bc836..b37927b9bb49 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<>();
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index 49b5c552506f..07342ccc0398 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index ef2555974df4..df8e440fa809 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayTest.java
index b6b98aa275e7..b18a8174816a 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<>();
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumArrays.java
index fff7f65c7264..6c71b803d65e 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index ebbb0fb9f3bc..dccac3813aa9 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java
index 4c976d99817e..8f36e9efa8d7 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import java.util.UUID;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MapTest.java
index 2caabbea07b4..c509697d09d4 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<>();
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 8d97329c312e..c309523c4c93 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.Map;
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Order.java
index 1735b41d3154..56910cde1816 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.time.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Pet.java
index ace85c42aae7..527e3a47cacc 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 786a681fb321..bd96e1101f4c 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index 701e4db8439c..68fd96415324 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/XmlItem.java
index 2af459e5aed3..73d73faf6fdf 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
index 1abb2d8a64e2..277d845e3062 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
index 1821c243e1d9..e8ee789b1adc 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
index 78f7ac79b212..bc028146de5c 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
index fc52759bc836..b37927b9bb49 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
@@ -24,11 +24,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass {
   @JsonProperty("map_string")
   private Map<String, String> mapString = new HashMap<>();
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
index 6e5159d404de..506bb0f60295 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
index ddc8146dea28..edf8b4fb4bd9 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
index cc29400029fa..a448386d7391 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
index fb3368dfedaf..8ab84972d6ac 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesString.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String> {
   @JsonProperty("name")
   private String name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Animal.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Animal.java
index 53a0eec33958..5bb3f5b3686a 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Animal.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Animal.java
@@ -22,6 +22,7 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -33,6 +34,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal {
   @JsonProperty("className")
   private String className;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
index 49b5c552506f..07342ccc0398 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly {
   @JsonProperty("ArrayArrayNumber")
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
index ef2555974df4..df8e440fa809 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly {
   @JsonProperty("ArrayNumber")
   private List<BigDecimal> arrayNumber = new ArrayList<>();
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayTest.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayTest.java
index b6b98aa275e7..b18a8174816a 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ArrayTest.java
@@ -23,11 +23,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import org.openapitools.client.model.ReadOnlyFirst;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest {
   @JsonProperty("array_of_string")
   private List<String> arrayOfString = new ArrayList<>();
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Capitalization.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Capitalization.java
index bb83be97fe94..ef8365a03e48 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Capitalization.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Capitalization.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Cat.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Cat.java
index ce456c86479f..4d9545c8741a 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Cat.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Cat.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.CatAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/CatAllOf.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/CatAllOf.java
index 224c08671c75..0cce461fd28d 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/CatAllOf.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/CatAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Category.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Category.java
index 03efdd4be845..e72f565ed2c3 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Category.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Category.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ClassModel.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ClassModel.java
index def421a6709b..a9f74cc3c322 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ClassModel.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ClassModel.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Client.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Client.java
index c0bd0743e535..77b8451e83a8 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Client.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Client.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client {
   @JsonProperty("client")
   private String client;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Dog.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Dog.java
index 6b79c5960690..1c8a665e2e1f 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Dog.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Dog.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.Animal;
 import org.openapitools.client.model.DogAllOf;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/DogAllOf.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/DogAllOf.java
index 1a4496d8f025..17854a143960 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/DogAllOf.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/DogAllOf.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumArrays.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumArrays.java
index fff7f65c7264..6c71b803d65e 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumArrays.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumClass.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumClass.java
index a4cc808868de..c0ec48ede644 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumClass.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumClass.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumTest.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumTest.java
index d4b36798ee68..7ed714579415 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumTest.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/EnumTest.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.openapitools.client.model.OuterEnum;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest {
   /**
    * Gets or Sets enumString
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
index ebbb0fb9f3bc..dccac3813aa9 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
@@ -22,11 +22,13 @@
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java
index 518432caff16..f3ac4a0fcfc6 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -25,11 +25,13 @@
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import java.util.UUID;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
index 44159e08e8ae..16a33b00fc9c 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MapTest.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MapTest.java
index 2caabbea07b4..c509697d09d4 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MapTest.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MapTest.java
@@ -23,11 +23,13 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest {
   @JsonProperty("map_map_of_string")
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<>();
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 8d97329c312e..c309523c4c93 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -26,11 +26,13 @@
 import java.util.Map;
 import java.util.UUID;
 import org.openapitools.client.model.Animal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Model200Response.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Model200Response.java
index bd3244dd57db..ca01778d9a48 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Model200Response.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Model200Response.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelApiResponse.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelApiResponse.java
index ed335cdca174..7bed02f71135 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelApiResponse.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelReturn.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelReturn.java
index 04c0bcd33f4f..978d6fd34bfa 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ModelReturn.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Name.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Name.java
index af27c6e45faa..58bd280b9dec 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Name.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Name.java
@@ -20,12 +20,14 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/NumberOnly.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/NumberOnly.java
index 4e29c814cc48..657a0a50ff29 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/NumberOnly.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Order.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Order.java
index 1735b41d3154..56910cde1816 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Order.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Order.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.time.OffsetDateTime;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterComposite.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterComposite.java
index f6515126a84c..91bf2f13aca7 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterComposite.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterComposite.java
@@ -21,11 +21,13 @@
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterEnum.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterEnum.java
index dacbbdfb2c91..dc7e1dc293c0 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/OuterEnum.java
@@ -15,6 +15,7 @@
 
 import java.util.Objects;
 import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Pet.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Pet.java
index ace85c42aae7..527e3a47cacc 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Pet.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Pet.java
@@ -24,11 +24,13 @@
 import java.util.List;
 import org.openapitools.client.model.Category;
 import org.openapitools.client.model.Tag;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
index a2c9e996993e..36e9cdf2cd18 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/SpecialModelName.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/SpecialModelName.java
index a5ddb0b63848..d268568a591a 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/SpecialModelName.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Tag.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Tag.java
index 8255ad8298ce..fb7789bd73ea 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Tag.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/Tag.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderDefault.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
index 786a681fb321..bd96e1101f4c 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderDefault.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderExample.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderExample.java
index 701e4db8439c..68fd96415324 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderExample.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/TypeHolderExample.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/User.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/User.java
index 6e6c4ac10254..141073c3c16a 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/User.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/User.java
@@ -20,11 +20,13 @@
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/XmlItem.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/XmlItem.java
index 2af459e5aed3..73d73faf6fdf 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/XmlItem.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/XmlItem.java
@@ -23,11 +23,13 @@
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Category.java b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Category.java
index b1ad95d3952b..00783ad52e95 100644
--- a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Category.java
+++ b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Category.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A category for a pet
  */
 @ApiModel(description = "A category for a pet")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/ModelApiResponse.java
index cc9dc2341c6d..c5d14c382e46 100644
--- a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Describes the result of uploading an image resource
  */
 @ApiModel(description = "Describes the result of uploading an image resource")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Order.java b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Order.java
index 0878b2dfe7ba..e1cd5048103e 100644
--- a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Order.java
+++ b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Order.java
@@ -10,12 +10,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * An order for a pets from the pet store
  */
 @ApiModel(description = "An order for a pets from the pet store")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Pet.java b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Pet.java
index 20e109b15caa..0e8d8da478d6 100644
--- a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Pet.java
@@ -13,12 +13,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A pet for sale in the pet store
  */
 @ApiModel(description = "A pet for sale in the pet store")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Tag.java b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Tag.java
index 8eb2e846891a..66f666c331c3 100644
--- a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/Tag.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A tag for a pet
  */
 @ApiModel(description = "A tag for a pet")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/User.java b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/User.java
index 95d92cd2ecbf..b0457f15cd2e 100644
--- a/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/User.java
+++ b/samples/client/petstore/spring-cloud/src/main/java/org/openapitools/model/User.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A User who is purchasing from the pet store
  */
 @ApiModel(description = "A User who is purchasing from the pet store")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Category.java b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Category.java
index b1ad95d3952b..00783ad52e95 100644
--- a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Category.java
+++ b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Category.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A category for a pet
  */
 @ApiModel(description = "A category for a pet")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/ModelApiResponse.java
index cc9dc2341c6d..c5d14c382e46 100644
--- a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Describes the result of uploading an image resource
  */
 @ApiModel(description = "Describes the result of uploading an image resource")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Order.java b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Order.java
index 0878b2dfe7ba..e1cd5048103e 100644
--- a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Order.java
+++ b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Order.java
@@ -10,12 +10,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * An order for a pets from the pet store
  */
 @ApiModel(description = "An order for a pets from the pet store")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Pet.java b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Pet.java
index 20e109b15caa..0e8d8da478d6 100644
--- a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Pet.java
@@ -13,12 +13,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A pet for sale in the pet store
  */
 @ApiModel(description = "A pet for sale in the pet store")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Tag.java b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Tag.java
index 8eb2e846891a..66f666c331c3 100644
--- a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/Tag.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A tag for a pet
  */
 @ApiModel(description = "A tag for a pet")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/User.java b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/User.java
index 95d92cd2ecbf..b0457f15cd2e 100644
--- a/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/User.java
+++ b/samples/client/petstore/spring-stubs/src/main/java/org/openapitools/model/User.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * A User who is purchasing from the pet store
  */
 @ApiModel(description = "A User who is purchasing from the pet store")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index f250cd5d2547..045a3cbe7260 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index d4aeef01b3e3..a3d370bd37cf 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index b2da4b9b26a6..56ceb0696eaf 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayTest.java
index fb134a8c4419..16c848957dd3 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumArrays.java
index 3c0ea1ea75a5..4ac5474a28b8 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index cb144d259aef..3adc03658a30 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java
index 7ce82141e038..f1b48b85f687 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MapTest.java
index 19a6db9cb155..9276398f3c44 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6f7a0b5d56e3..e56c176d8686 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Order.java
index c45d3e54504e..017cdf909034 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Pet.java
index 640c157bbdbf..ca87b42b5d02 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderDefault.java
index 7dd51d7ccd56..bbd3e074f2fe 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderExample.java
index 01d66d0242d1..e5d8ea8e4039 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/XmlItem.java
index dae97d794675..2d38e3c7ac61 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index f250cd5d2547..045a3cbe7260 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index d4aeef01b3e3..a3d370bd37cf 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index b2da4b9b26a6..56ceb0696eaf 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayTest.java
index fb134a8c4419..16c848957dd3 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumArrays.java
index 3c0ea1ea75a5..4ac5474a28b8 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index cb144d259aef..3adc03658a30 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java
index ba39164b5aec..00cf466a3c72 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MapTest.java
index 19a6db9cb155..9276398f3c44 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 02ef3036e6b6..bf0b8ba423ba 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Order.java
index 87bc2feb9245..c15cee0f8bf3 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Pet.java
index 640c157bbdbf..ca87b42b5d02 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderDefault.java
index 7dd51d7ccd56..bbd3e074f2fe 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderExample.java
index 01d66d0242d1..e5d8ea8e4039 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/XmlItem.java
index dae97d794675..2d38e3c7ac61 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index d3354fa81c89..2a8b6a5447a5 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index a1fe8166abf8..28912637cb40 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index a76320466a38..8eb1146f1073 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayTest.java
index df4610324400..e579541a5686 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumArrays.java
index 9592f35f25a1..39a2af96502d 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index edc5d19f57ea..fc31089f5e3b 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java
index f43bc1d659e9..0fad85ca89d8 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MapTest.java
index 7a4421206d0e..147af6a4081e 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6c0fe72d4773..96c314301043 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Order.java
index 85e3c108d488..73006e732e16 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Pet.java
index c7478568ba58..5c9a7088aae3 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderDefault.java
index b88e00b47d78..2c7ff2f54193 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderExample.java
index 90886467ceb8..88af154c8ef8 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/XmlItem.java
index ca74cfcfd91c..d23c5a2559f7 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index d3354fa81c89..2a8b6a5447a5 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index a1fe8166abf8..28912637cb40 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index a76320466a38..8eb1146f1073 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayTest.java
index df4610324400..e579541a5686 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumArrays.java
index 9592f35f25a1..39a2af96502d 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index edc5d19f57ea..fc31089f5e3b 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java
index f43bc1d659e9..0fad85ca89d8 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MapTest.java
index 7a4421206d0e..147af6a4081e 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6c0fe72d4773..96c314301043 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Order.java
index 85e3c108d488..73006e732e16 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Pet.java
index c7478568ba58..5c9a7088aae3 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderDefault.java
index b88e00b47d78..2c7ff2f54193 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderExample.java
index 90886467ceb8..88af154c8ef8 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/XmlItem.java
index ca74cfcfd91c..d23c5a2559f7 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index f250cd5d2547..045a3cbe7260 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index d4aeef01b3e3..a3d370bd37cf 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index b2da4b9b26a6..56ceb0696eaf 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayTest.java
index fb134a8c4419..16c848957dd3 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumArrays.java
index 3c0ea1ea75a5..4ac5474a28b8 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index cb144d259aef..3adc03658a30 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java
index 7ce82141e038..f1b48b85f687 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MapTest.java
index 19a6db9cb155..9276398f3c44 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6f7a0b5d56e3..e56c176d8686 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Order.java
index c45d3e54504e..017cdf909034 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Pet.java
index 640c157bbdbf..ca87b42b5d02 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderDefault.java
index 7dd51d7ccd56..bbd3e074f2fe 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderExample.java
index 01d66d0242d1..e5d8ea8e4039 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/XmlItem.java
index dae97d794675..2d38e3c7ac61 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index d3354fa81c89..2a8b6a5447a5 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index a1fe8166abf8..28912637cb40 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index a76320466a38..8eb1146f1073 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayTest.java
index df4610324400..e579541a5686 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumArrays.java
index 9592f35f25a1..39a2af96502d 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index edc5d19f57ea..fc31089f5e3b 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java
index f43bc1d659e9..0fad85ca89d8 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MapTest.java
index 7a4421206d0e..147af6a4081e 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6c0fe72d4773..96c314301043 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Order.java
index 85e3c108d488..73006e732e16 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Pet.java
index c7478568ba58..5c9a7088aae3 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderDefault.java
index b88e00b47d78..2c7ff2f54193 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderExample.java
index 90886467ceb8..88af154c8ef8 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/XmlItem.java
index ca74cfcfd91c..d23c5a2559f7 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index f250cd5d2547..045a3cbe7260 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index d4aeef01b3e3..a3d370bd37cf 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index b2da4b9b26a6..56ceb0696eaf 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayTest.java
index fb134a8c4419..16c848957dd3 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumArrays.java
index 3c0ea1ea75a5..4ac5474a28b8 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index cb144d259aef..3adc03658a30 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java
index 7ce82141e038..f1b48b85f687 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MapTest.java
index 19a6db9cb155..9276398f3c44 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6f7a0b5d56e3..e56c176d8686 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Order.java
index c45d3e54504e..017cdf909034 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Pet.java
index 640c157bbdbf..ca87b42b5d02 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderDefault.java
index 7dd51d7ccd56..bbd3e074f2fe 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderExample.java
index 01d66d0242d1..e5d8ea8e4039 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/XmlItem.java
index dae97d794675..2d38e3c7ac61 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index f250cd5d2547..045a3cbe7260 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index d4aeef01b3e3..a3d370bd37cf 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index b2da4b9b26a6..56ceb0696eaf 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayTest.java
index fb134a8c4419..16c848957dd3 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumArrays.java
index 3c0ea1ea75a5..4ac5474a28b8 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index cb144d259aef..3adc03658a30 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java
index 7ce82141e038..f1b48b85f687 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MapTest.java
index 19a6db9cb155..9276398f3c44 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6f7a0b5d56e3..e56c176d8686 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Order.java
index c45d3e54504e..017cdf909034 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Pet.java
index 640c157bbdbf..ca87b42b5d02 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderDefault.java
index 7dd51d7ccd56..bbd3e074f2fe 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderExample.java
index 01d66d0242d1..e5d8ea8e4039 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/XmlItem.java
index dae97d794675..2d38e3c7ac61 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index f250cd5d2547..045a3cbe7260 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index d4aeef01b3e3..a3d370bd37cf 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index b2da4b9b26a6..56ceb0696eaf 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayTest.java
index fb134a8c4419..16c848957dd3 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumArrays.java
index 3c0ea1ea75a5..4ac5474a28b8 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index cb144d259aef..3adc03658a30 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java
index 7ce82141e038..f1b48b85f687 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MapTest.java
index 19a6db9cb155..9276398f3c44 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6f7a0b5d56e3..e56c176d8686 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Order.java
index c45d3e54504e..017cdf909034 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Pet.java
index 640c157bbdbf..ca87b42b5d02 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderDefault.java
index 7dd51d7ccd56..bbd3e074f2fe 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderExample.java
index 01d66d0242d1..e5d8ea8e4039 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/XmlItem.java
index dae97d794675..2d38e3c7ac61 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesAnyType.java
index bc5960e9e2a0..6954c9ad68d3 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesArray.java
index 2cfbb24d2edf..59d1da8dd1b6 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesBoolean.java
index 8e55722065f4..35805c44a0cd 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesClass.java
index 844aa0f0e416..be9140970005 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesInteger.java
index 2b47dfbf1c73..42567b5f8de7 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesNumber.java
index fe6a25142e7e..a54d599280a4 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesObject.java
index 247eb15053a5..bfa9e4cac594 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesString.java
index 860a174ebc00..40ccddfd6ae9 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Animal.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Animal.java
index baedd9662ba6..d83378cd9c36 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Animal.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfArrayOfNumberOnly.java
index 97983a205d65..e4a28991d49c 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfNumberOnly.java
index c621a5abdd83..acbde647514b 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayTest.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayTest.java
index a1c0e06ea614..19cb1a2b2828 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayTest.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Capitalization.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Capitalization.java
index 37fbab45b5de..b329c13ff45e 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Capitalization.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Cat.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Cat.java
index 11b3fdcac09c..c861fbc006f0 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Cat.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/CatAllOf.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/CatAllOf.java
index aee739099baf..84f940821942 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/CatAllOf.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Category.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Category.java
index 1de7ecef165d..1d39ad2bca00 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Category.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ClassModel.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ClassModel.java
index c9963672df27..04b234254147 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ClassModel.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Client.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Client.java
index bdfe8ab1441d..ad75b3fc8015 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Client.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Dog.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Dog.java
index 1cbf5a5cbc0a..f01eaa7a235f 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Dog.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/DogAllOf.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/DogAllOf.java
index adb89e08f8a3..daee7cf7db59 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/DogAllOf.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumArrays.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumArrays.java
index 25585cdcede4..a0e4e33cfd06 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumArrays.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumClass.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumClass.java
index 31286ef24fa0..340cfe33651e 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumClass.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumTest.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumTest.java
index e5b7493db166..eefe1154557e 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumTest.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FileSchemaTestClass.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FileSchemaTestClass.java
index 9940cdc7798c..7152c12270f4 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java
index 9a402df17ef3..d45eaf6aba2e 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/HasOnlyReadOnly.java
index 722c0d1e398c..1183ad7279a3 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MapTest.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MapTest.java
index d2d385b401f0..b8bc9e72eeea 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MapTest.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 0bbe7b8446fe..3ff0acf32c78 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Model200Response.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Model200Response.java
index 83cc4f8174cb..f84fa7165c88 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Model200Response.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelApiResponse.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelApiResponse.java
index 8ff519aea3e7..fdd04da756de 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelReturn.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelReturn.java
index 16f683d95dc7..34a3ef0b8978 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelReturn.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Name.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Name.java
index fd419b60a0cf..e6b744fc5b14 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Name.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/NumberOnly.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/NumberOnly.java
index 494ac9d66d95..19e3c852de27 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/NumberOnly.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Order.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Order.java
index 4075aecc8faa..11fa3748b107 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Order.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterComposite.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterComposite.java
index cdff3253b98d..2712e5078b1d 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterComposite.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterEnum.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterEnum.java
index a0dbf4671d9c..2065c139add6 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterEnum.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Pet.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Pet.java
index b08639c80d4c..33bf15b9b526 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Pet.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ReadOnlyFirst.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ReadOnlyFirst.java
index 2526f0d1f72f..e3512469902b 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/SpecialModelName.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/SpecialModelName.java
index b4bc84c7b910..24515200e0eb 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Tag.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Tag.java
index b833cfcd350a..fcce5f9f398a 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Tag.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderDefault.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderDefault.java
index 99ab478b4724..64d0e49cefbb 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderExample.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderExample.java
index 4ab72c740079..a090fa0a17f4 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/User.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/User.java
index b5a97b806c97..15fb6fcf2912 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/User.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/XmlItem.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/XmlItem.java
index ac1ba8ac6353..72103d429906 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/XmlItem.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
index 448c77cea931..b0bba87c0acc 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesAnyType.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesAnyType
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesAnyType extends HashMap<String, Object>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
index a80499fd79b9..a60071dbca55 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesArray.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesArray
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesArray extends HashMap<String, List>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
index d8db9baf3105..826f91972a0e 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesBoolean.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesBoolean
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesBoolean extends HashMap<String, Boolean>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
index f250cd5d2547..045a3cbe7260 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesClass.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesClass   {
   @JsonProperty("map_string")
   @Valid
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
index b94e539aa3f2..e022864be33c 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesInteger.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesInteger
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesInteger extends HashMap<String, Integer>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
index c33e1e3b7a21..87de65da99f3 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesNumber.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesNumber
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesNumber extends HashMap<String, BigDecimal>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
index cab0c80d9b4c..24ca3ea81bcf 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesObject.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesObject
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesObject extends HashMap<String, Map>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesString.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
index 894eb466b4cc..a70891cda860 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/AdditionalPropertiesString.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * AdditionalPropertiesString
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class AdditionalPropertiesString extends HashMap<String, String>  {
   @JsonProperty("name")
   private String name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Animal.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Animal.java
index 68d2e740966b..9389444290fb 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Animal.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Animal.java
@@ -10,6 +10,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Animal
@@ -21,6 +22,7 @@
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
 })
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Animal   {
   @JsonProperty("className")
   private String className;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
index d4aeef01b3e3..a3d370bd37cf 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfArrayOfNumberOnly   {
   @JsonProperty("ArrayArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
index b2da4b9b26a6..56ceb0696eaf 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayOfNumberOnly.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayOfNumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayOfNumberOnly   {
   @JsonProperty("ArrayNumber")
   @Valid
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayTest.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayTest.java
index fb134a8c4419..16c848957dd3 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayTest.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ArrayTest.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ArrayTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ArrayTest   {
   @JsonProperty("array_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Capitalization.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Capitalization.java
index e1346fe63ea8..bd70c419e4df 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Capitalization.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Capitalization.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Capitalization
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Capitalization   {
   @JsonProperty("smallCamel")
   private String smallCamel;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Cat.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Cat.java
index f6d3c17d0be3..ac3d743415a0 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Cat.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Cat.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Cat
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Cat extends Animal  {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/CatAllOf.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/CatAllOf.java
index cf145ae53718..5a7489b5f258 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/CatAllOf.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/CatAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * CatAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class CatAllOf   {
   @JsonProperty("declawed")
   private Boolean declawed;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Category.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Category.java
index db3f8e08dc0d..2ab4df3168c3 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Category.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Category.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Category
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Category   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ClassModel.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ClassModel.java
index ba96dc2add68..f78796278776 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ClassModel.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ClassModel.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model with \&quot;_class\&quot; property
  */
 @ApiModel(description = "Model for testing model with \"_class\" property")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ClassModel   {
   @JsonProperty("_class")
   private String propertyClass;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Client.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Client.java
index 59d479c85336..dff534137bb9 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Client.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Client.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Client
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Client   {
   @JsonProperty("client")
   private String client;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Dog.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Dog.java
index 02e027c3feea..8072d48b7cd0 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Dog.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Dog.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Dog
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Dog extends Animal  {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/DogAllOf.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/DogAllOf.java
index a1c4c17d8907..e3015c17cc2f 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/DogAllOf.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/DogAllOf.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * DogAllOf
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class DogAllOf   {
   @JsonProperty("breed")
   private String breed;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumArrays.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumArrays.java
index 3c0ea1ea75a5..4ac5474a28b8 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumArrays.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumArrays.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumArrays
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumArrays   {
   /**
    * Gets or Sets justSymbol
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumClass.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumClass.java
index fd156263f3ab..e3ffe7d1096c 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumClass.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumClass.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumTest.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumTest.java
index 7c93e03bbb00..fd3c2f613a33 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumTest.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/EnumTest.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * EnumTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class EnumTest   {
   /**
    * Gets or Sets enumString
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FileSchemaTestClass.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FileSchemaTestClass.java
index cb144d259aef..3adc03658a30 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FileSchemaTestClass.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FileSchemaTestClass.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FileSchemaTestClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FileSchemaTestClass   {
   @JsonProperty("file")
   private java.io.File file = null;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java
index 7ce82141e038..f1b48b85f687 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * FormatTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class FormatTest   {
   @JsonProperty("integer")
   private Integer integer;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/HasOnlyReadOnly.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
index c0e7dd75528e..a7fdff1eaacd 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/HasOnlyReadOnly.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * HasOnlyReadOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class HasOnlyReadOnly   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MapTest.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MapTest.java
index 19a6db9cb155..9276398f3c44 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MapTest.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MapTest.java
@@ -12,11 +12,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MapTest
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MapTest   {
   @JsonProperty("map_map_of_string")
   @Valid
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 6f7a0b5d56e3..e56c176d8686 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -14,11 +14,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * MixedPropertiesAndAdditionalPropertiesClass
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class MixedPropertiesAndAdditionalPropertiesClass   {
   @JsonProperty("uuid")
   private UUID uuid;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Model200Response.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Model200Response.java
index 04606fb90460..6dafa5f84a21 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Model200Response.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Model200Response.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name starting with number
  */
 @ApiModel(description = "Model for testing model name starting with number")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Model200Response   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelApiResponse.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelApiResponse.java
index 1d385b21bd4d..1d3907aa4b29 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelApiResponse.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelApiResponse.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ModelApiResponse
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelApiResponse   {
   @JsonProperty("code")
   private Integer code;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelReturn.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelReturn.java
index 82026635f5cb..e2067e634db9 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelReturn.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ModelReturn.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing reserved words
  */
 @ApiModel(description = "Model for testing reserved words")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ModelReturn   {
   @JsonProperty("return")
   private Integer _return;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Name.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Name.java
index 1180f019ea3f..543d2f7800ad 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Name.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Name.java
@@ -8,12 +8,14 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Model for testing model name same as property name
  */
 @ApiModel(description = "Model for testing model name same as property name")
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Name   {
   @JsonProperty("name")
   private Integer name;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/NumberOnly.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/NumberOnly.java
index 4423a2ac631d..7fb48cff384b 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/NumberOnly.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/NumberOnly.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * NumberOnly
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class NumberOnly   {
   @JsonProperty("JustNumber")
   private BigDecimal justNumber;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Order.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Order.java
index c45d3e54504e..017cdf909034 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Order.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Order.java
@@ -10,11 +10,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Order
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Order   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterComposite.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterComposite.java
index 61dbaaefeeae..69f1a1e5d3d5 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterComposite.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterComposite.java
@@ -9,11 +9,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * OuterComposite
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class OuterComposite   {
   @JsonProperty("my_number")
   private BigDecimal myNumber;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterEnum.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterEnum.java
index 59c416ba0fa4..c10be3544945 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterEnum.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/OuterEnum.java
@@ -5,6 +5,7 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Pet.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Pet.java
index 640c157bbdbf..ca87b42b5d02 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Pet.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Pet.java
@@ -13,11 +13,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Pet
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Pet   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ReadOnlyFirst.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ReadOnlyFirst.java
index 4e1c3e681095..3c87734dea60 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ReadOnlyFirst.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/ReadOnlyFirst.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * ReadOnlyFirst
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class ReadOnlyFirst   {
   @JsonProperty("bar")
   private String bar;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/SpecialModelName.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/SpecialModelName.java
index 6c0bfa749d3d..d69fcdf922f4 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/SpecialModelName.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/SpecialModelName.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * SpecialModelName
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class SpecialModelName   {
   @JsonProperty("$special[property.name]")
   private Long $specialPropertyName;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Tag.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Tag.java
index c72064ce0428..d67da71aab5c 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Tag.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/Tag.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * Tag
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Tag   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderDefault.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderDefault.java
index 7dd51d7ccd56..bbd3e074f2fe 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderDefault.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderDefault.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderDefault
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderDefault   {
   @JsonProperty("string_item")
   private String stringItem = "what";
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderExample.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderExample.java
index 01d66d0242d1..e5d8ea8e4039 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderExample.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/TypeHolderExample.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * TypeHolderExample
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class TypeHolderExample   {
   @JsonProperty("string_item")
   private String stringItem;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/User.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/User.java
index d195089778a9..aea67dc93eaf 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/User.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/User.java
@@ -8,11 +8,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * User
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class User   {
   @JsonProperty("id")
   private Long id;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/XmlItem.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/XmlItem.java
index dae97d794675..2d38e3c7ac61 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/XmlItem.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/XmlItem.java
@@ -11,11 +11,13 @@
 import org.openapitools.jackson.nullable.JsonNullable;
 import javax.validation.Valid;
 import javax.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 /**
  * XmlItem
  */
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class XmlItem   {
   @JsonProperty("attribute_string")
   private String attributeString;