diff --git a/modules/openapi-generator/src/main/resources/JavaSpring/nullableDatatypeWithEnum.mustache b/modules/openapi-generator/src/main/resources/JavaSpring/nullableDatatypeWithEnum.mustache
new file mode 100644
index 000000000000..8fbd3969b872
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/JavaSpring/nullableDatatypeWithEnum.mustache
@@ -0,0 +1 @@
+{{#lambda.jSpecifyDatatype}}{{{datatypeWithEnum}}}{{/lambda.jSpecifyDatatype}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache b/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache
index 6dd2e6da00d2..5606c3ba9859 100644
--- a/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaSpring/pojo.mustache
@@ -134,7 +134,7 @@ public {{>sealed}}class {{classname}}{{#parent}} extends {{{parent}}}{{/parent}}
   /**
    * Constructor with all args parameters
    */
-  public {{classname}}({{#vendorExtensions.x-java-all-args-constructor-vars}}{{>nullableAnnotation}}{{{datatypeWithEnum}}} {{name}}{{^-last}}, {{/-last}}{{/vendorExtensions.x-java-all-args-constructor-vars}}) {
+  public {{classname}}({{#vendorExtensions.x-java-all-args-constructor-vars}}{{>nullableAnnotation}}{{>nullableDatatypeWithEnum}} {{name}}{{^-last}}, {{/-last}}{{/vendorExtensions.x-java-all-args-constructor-vars}}) {
   {{#parent}}
       super({{#parentVars}}{{name}}{{^-last}}, {{/-last}}{{/parentVars}});
   {{/parent}}
@@ -153,7 +153,7 @@ public {{>sealed}}class {{classname}}{{#parent}} extends {{{parent}}}{{/parent}}
   {{^lombok.Data}}
 
   {{! begin feature: fluent setter methods }}
-  public {{classname}} {{name}}({{>nullableAnnotation}}{{{datatypeWithEnum}}} {{name}}) {
+  public {{classname}} {{name}}({{>nullableAnnotation}}{{>nullableDatatypeWithEnum}} {{name}}) {
     {{#openApiNullable}}
     this.{{name}} = {{#isNullable}}JsonNullable.of({{/isNullable}}{{#useOptional}}{{^required}}{{^isNullable}}{{^isContainer}}Optional.of{{#optionalAcceptNullable}}Nullable{{/optionalAcceptNullable}}({{/isContainer}}{{/isNullable}}{{/required}}{{/useOptional}}{{name}}{{#isNullable}}){{/isNullable}}{{#useOptional}}{{^required}}{{^isNullable}}{{^isContainer}}){{/isContainer}}{{/isNullable}}{{/required}}{{/useOptional}};
     {{/openApiNullable}}
diff --git a/samples/openapi3/server/petstore/springboot-4-jspecify/src/main/java/org/openapitools/model/Foo.java b/samples/openapi3/server/petstore/springboot-4-jspecify/src/main/java/org/openapitools/model/Foo.java
index cc8b5f4e0098..a46b9bf7e20e 100644
--- a/samples/openapi3/server/petstore/springboot-4-jspecify/src/main/java/org/openapitools/model/Foo.java
+++ b/samples/openapi3/server/petstore/springboot-4-jspecify/src/main/java/org/openapitools/model/Foo.java
@@ -70,7 +70,7 @@ public Foo(OffsetDateTime requiredDt) {
   /**
    * Constructor with all args parameters
    */
-  public Foo(OffsetDateTime dt, org.springframework.core.io.Resource binary, List<OffsetDateTime> listOfDt, List<OffsetDateTime> listMinIntems, OffsetDateTime requiredDt, BigDecimal number) {
+  public Foo(@Nullable OffsetDateTime dt, org.springframework.core.io.@Nullable Resource binary, List<OffsetDateTime> listOfDt, List<OffsetDateTime> listMinIntems, OffsetDateTime requiredDt, @Nullable BigDecimal number) {
       this.dt = dt;
       this.binary = binary;
       this.listOfDt = listOfDt;
@@ -79,7 +79,7 @@ public Foo(OffsetDateTime dt, org.springframework.core.io.Resource binary, List<
       this.number = number;
   }
 
-  public Foo dt(OffsetDateTime dt) {
+  public Foo dt(@Nullable OffsetDateTime dt) {
     this.dt = dt;
     return this;
   }
@@ -104,7 +104,7 @@ public void setDt(@Nullable OffsetDateTime dt) {
     this.dt = dt;
   }
 
-  public Foo binary(org.springframework.core.io.Resource binary) {
+  public Foo binary(org.springframework.core.io.@Nullable Resource binary) {
     this.binary = binary;
     return this;
   }
@@ -223,7 +223,7 @@ public void setRequiredDt(OffsetDateTime requiredDt) {
     this.requiredDt = requiredDt;
   }
 
-  public Foo number(BigDecimal number) {
+  public Foo number(@Nullable BigDecimal number) {
     this.number = number;
     return this;
   }