[#11696] Add test case

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/spring/SpringCodegenTest.java

@@ -1076,7 +1076,6 @@ public void testIssue11323() throws IOException {
 
         SpringCodegen codegen = new SpringCodegen();
         codegen.setOutputDir(output.getAbsolutePath());
-        //codegen.additionalProperties().put(CXFServerFeatures.LOAD_TEST_DATA_FROM_FILE, "true");
 
         ClientOptInput input = new ClientOptInput();
         input.openAPI(openAPI);
@@ -1322,4 +1321,34 @@ public void shouldSetDefaultValueForMultipleArrayItems() throws IOException {
                 .assertParameterAnnotations()
                 .containsWithNameAndAttributes("RequestParam", ImmutableMap.of("defaultValue", "\"\""));
     }
+
+    @Test(enabled = false)
+    // TODO Test case reproduces issue #11696. Enable when the issue is fixed.
+    public void testIssue11696() throws IOException {
+        File output = Files.createTempDirectory("test").toFile().getCanonicalFile();
+        output.deleteOnExit();
+        String outputPath = output.getAbsolutePath().replace('\\', '/');
+
+        OpenAPI openAPI = new OpenAPIParser()
+              .readLocation("src/test/resources/3_0/spring/issue_11696.yml", null, new ParseOptions()).getOpenAPI();
+
+        SpringCodegen codegen = new SpringCodegen();
+        codegen.setOutputDir(output.getAbsolutePath());
+
+        ClientOptInput input = new ClientOptInput();
+        input.openAPI(openAPI);
+        input.config(codegen);
+
+        DefaultGenerator generator = new DefaultGenerator();
+
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODELS, "true");
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODEL_TESTS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODEL_DOCS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.APIS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.SUPPORTING_FILES, "false");
+        generator.opts(input).generate();
+
+        assertFileNotContains(Paths.get(outputPath + "/src/main/java/org/openapitools/model/MyType.java"),
+              "putCategoryItem");
+    }
 }

modules/openapi-generator/src/test/resources/3_0/spring/issue_11696.yml

@@ -0,0 +1,33 @@
+openapi: 3.0.1
+info:
+  title: Test Issue #11696
+  version: v1
+paths:
+  /test:
+    get:
+      responses:
+        '200':
+          description: default response
+          content:
+            '*/*':
+              schema:
+                $ref: '#/components/schemas/MyType'
+components:
+  schemas:
+    MyType:
+      required:
+        - category
+      type: object
+      properties:
+        category:
+          type: object
+          description: |-
+            <strong>Type:</strong> Category<br/>
+            The category
+          allOf:
+            - $ref: '#/components/schemas/Category'
+    Category:
+      type: object
+      properties:
+        name:
+          type: string