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 52e71fc22b79..64f6611734b3 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
@@ -575,7 +575,10 @@ public void processOpts() {
         // imports for pojos
         importMapping.put("ApiModelProperty", "io.swagger.annotations.ApiModelProperty");
         importMapping.put("ApiModel", "io.swagger.annotations.ApiModel");
-        importMapping.put("Schema", "io.swagger.v3.oas.annotations.media.Schema");
+        // optional import for swagger2 annotation. Fixes #19170
+        if (AnnotationLibrary.SWAGGER2.equals(getAnnotationLibrary())) {
+            importMapping.put("Schema", "io.swagger.v3.oas.annotations.media.Schema");
+        }
         importMapping.put("BigDecimal", "java.math.BigDecimal");
         importMapping.put("JsonProperty", "com.fasterxml.jackson.annotation.JsonProperty");
         importMapping.put("JsonSubTypes", "com.fasterxml.jackson.annotation.JsonSubTypes");
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/JavaJerseyServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/JavaJerseyServerCodegen.java
index 27763fcb5efd..23caa74bf1bf 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/JavaJerseyServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/JavaJerseyServerCodegen.java
@@ -110,9 +110,9 @@ public void processOpts() {
             this.setUseJakartaEe(true);
             additionalProperties.put(USE_JAKARTA_EE, true);
             this.applyJakartaPackage();
-            // --- Set Swagger2 annotations ---------------   
+            // --- Set Swagger2 annotations and import corresponding library ----
             annotationLibrary = AnnotationLibrary.SWAGGER2;
-            
+            importMapping.put("Schema", "io.swagger.v3.oas.annotations.media.Schema");
         }
         
         convertPropertyToStringAndWriteBack(CodegenConstants.IMPL_FOLDER, value -> implFolder = value);