feat(spring): enable openApiNullable with useJackson3 (#23331)

* fix: allow `openApiNullable` with `useJackson3`

* chore: update jackson-databind-nullable to 0.2.10

Author: sonallux

docs/generators/java-camel.md

@@ -306,7 +306,7 @@ public SpringCodegen() {
         cliOptions.add(CliOption.newBoolean(USE_SPRING_BOOT4,
                 "Generate code and provide dependencies for use with Spring Boot 4.x. (Use jakarta instead of javax in imports). Enabling this option will also enable `useJakartaEe`.",
                 useSpringBoot4));
-        cliOptions.add(CliOption.newBoolean(USE_JACKSON_3, "Set it in order to use jackson 3 dependencies (only allowed when `" + USE_SPRING_BOOT4 + "` is set and incompatible with `"+OPENAPI_NULLABLE+"`).", useJackson3));
+        cliOptions.add(CliOption.newBoolean(USE_JACKSON_3, "Set it in order to use jackson 3 dependencies (only allowed when `" + USE_SPRING_BOOT4 + "` is set).", useJackson3));
         cliOptions.add(new CliOption(INCLUDE_HTTP_REQUEST_CONTEXT,
                 "Whether to include HttpServletRequest (blocking) or ServerWebExchange (reactive) as additional parameter in generated methods. Defaults to 'true' for reactive and 'false' for blocking.",
                 SchemaTypeUtil.BOOLEAN_TYPE).defaultValue("true (reactive) / false (blocking)"));
@@ -535,9 +535,6 @@ public void processOpts() {
         if(isUseJackson3() && !isUseSpringBoot4()){
             throw new IllegalArgumentException("useJackson3 is only available with Spring Boot >= 4");
         }
-        if(isUseJackson3() && isOpenApiNullable()){
-            throw new IllegalArgumentException("openApiNullable cannot be set with useJackson3");
-        }
         if(this.useJackson3){
             this.applyJackson3Package();
         } else {

docs/generators/spring.md

@@ -118,7 +118,7 @@ ext {
     jackson_annotations_version = "2.21"
     jackson_databind_version = "2.21.1"
     {{#openApiNullable}}
-    jackson_databind_nullable_version = "0.2.9"
+    jackson_databind_nullable_version = "0.2.10"
     {{/openApiNullable}}
     jakarta_annotation_version = "1.3.5"
     {{#useBeanValidation}}

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/SpringCodegen.java

@@ -118,7 +118,7 @@ ext {
     jackson_annotations_version = "2.21"
     jackson_databind_version = "2.21.1"
     {{#openApiNullable}}
-    jackson_databind_nullable_version = "0.2.9"
+    jackson_databind_nullable_version = "0.2.10"
     {{/openApiNullable}}
     jakarta_annotation_version = "1.3.5"
     httpclient_version = "5.1.3"

modules/openapi-generator/src/main/resources/Java/build.gradle.mustache

@@ -355,7 +355,7 @@
         <jackson-annotations-version>2.21</jackson-annotations-version>
         <jackson-databind-version>2.21.1</jackson-databind-version>
         {{#openApiNullable}}
-        <jackson-databind-nullable-version>0.2.9</jackson-databind-nullable-version>
+        <jackson-databind-nullable-version>0.2.10</jackson-databind-nullable-version>
         {{/openApiNullable}}
         {{#useJakartaEe}}
         <jakarta-annotation-version>2.1.1</jakarta-annotation-version>

modules/openapi-generator/src/main/resources/Java/libraries/apache-httpclient/build.gradle.mustache

@@ -108,7 +108,7 @@ ext {
     jackson_databind_version = "2.21.1"
     {{/jackson}}
     {{#openApiNullable}}
-    jackson_databind_nullable_version = "0.2.9"
+    jackson_databind_nullable_version = "0.2.10"
     {{/openApiNullable}}
     jakarta_annotation_version = "1.3.5"
     feign_version = "13.5"

modules/openapi-generator/src/main/resources/Java/libraries/apache-httpclient/pom.mustache

@@ -417,7 +417,7 @@
         <gson-version>2.10.1</gson-version>
         {{/gson}}
         {{#openApiNullable}}
-        <jackson-databind-nullable-version>0.2.9</jackson-databind-nullable-version>
+        <jackson-databind-nullable-version>0.2.10</jackson-databind-nullable-version>
         {{/openApiNullable}}
         {{#useJakartaEe}}
         <jakarta-annotation-version>2.1.1</jakarta-annotation-version>

modules/openapi-generator/src/main/resources/Java/libraries/feign/build.gradle.mustache

@@ -101,7 +101,7 @@ ext {
     jackson_version = "2.19.2"
     jackson_databind_version = "2.19.2"
     {{#openApiNullable}}
-    jackson_databind_nullable_version = "0.2.9"
+    jackson_databind_nullable_version = "0.2.10"
     {{/openApiNullable}}
     jakarta_annotation_version = "1.3.5"
     google_api_client_version = "1.32.2"

modules/openapi-generator/src/main/resources/Java/libraries/feign/pom.mustache

@@ -313,7 +313,7 @@
         <jackson-version>2.19.2</jackson-version>
         <jackson-databind-version>2.19.2</jackson-databind-version>
         {{#openApiNullable}}
-        <jackson-databind-nullable-version>0.2.9</jackson-databind-nullable-version>
+        <jackson-databind-nullable-version>0.2.10</jackson-databind-nullable-version>
         {{/openApiNullable}}
         {{#joda}}
         <jodatime-version>2.9.9</jodatime-version>