Support validation for arrays for JavaJaxRS and a test to validate the fix (#11709)

modules/openapi-generator/src/main/resources/JavaJaxRS/spec/beanValidatedType.mustache

@@ -0,0 +1 @@
+{{#isArray}}{{baseType}}<{{#items}}{{#useBeanValidation}}{{>beanValidation}}{{/useBeanValidation}}{{>beanValidatedType}}{{/items}}>{{/isArray}}{{^isArray}}{{{datatypeWithEnum}}}{{/isArray}}

modules/openapi-generator/src/main/resources/JavaJaxRS/spec/pojo.mustache

@@ -45,7 +45,7 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
   {{#vendorExtensions.x-extra-annotation}}{{{vendorExtensions.x-extra-annotation}}}{{/vendorExtensions.x-extra-annotation}}{{#useSwaggerAnnotations}}
   @ApiModelProperty({{#example}}example = "{{{.}}}", {{/example}}{{#required}}required = {{required}}, {{/required}}value = "{{{description}}}"){{/useSwaggerAnnotations}}
   @JsonProperty("{{baseName}}")
-{{#useBeanValidation}}{{>beanValidation}}{{/useBeanValidation}}  public {{{datatypeWithEnum}}} {{getter}}() {
+{{#useBeanValidation}}{{>beanValidation}}{{/useBeanValidation}}  public {{>beanValidatedType}} {{getter}}() {
     return {{name}};
   }
 

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/jaxrs/JavaJAXRSSpecServerCodegenTest.java

@@ -6,11 +6,9 @@ import io.swagger.v3.oas.models.Operation;
 import io.swagger.v3.oas.models.media.ArraySchema;
 import io.swagger.v3.oas.models.servers.Server;
 import io.swagger.v3.parser.core.models.ParseOptions;
-
 import org.openapitools.codegen.*;
 import org.openapitools.codegen.config.CodegenConfigurator;
 import org.openapitools.codegen.languages.AbstractJavaJAXRSServerCodegen;
-import org.openapitools.codegen.languages.JavaClientCodegen;
 import org.openapitools.codegen.languages.JavaJAXRSSpecServerCodegen;
 import org.openapitools.codegen.languages.features.CXFServerFeatures;
 import org.testng.Assert;
@@ -30,8 +28,8 @@ import static org.openapitools.codegen.TestUtils.assertFileContains;
 import static org.openapitools.codegen.TestUtils.validateJavaSourceFiles;
 import static org.openapitools.codegen.languages.AbstractJavaJAXRSServerCodegen.USE_TAGS;
 import static org.openapitools.codegen.languages.JavaJAXRSSpecServerCodegen.INTERFACE_ONLY;
-import static org.openapitools.codegen.languages.JavaJAXRSSpecServerCodegen.SUPPORT_ASYNC;
 import static org.openapitools.codegen.languages.JavaJAXRSSpecServerCodegen.RETURN_RESPONSE;
+import static org.openapitools.codegen.languages.JavaJAXRSSpecServerCodegen.SUPPORT_ASYNC;
 import static org.testng.Assert.assertTrue;
 
 /**
@@ -586,4 +584,30 @@ public class JavaJAXRSSpecServerCodegenTest extends JavaJaxrsBaseTest {
                 "CompletionStage<Integer> pingGetInteger" //Support primitive types response
         );
     }
+
+    @Test
+    public void generateDeepObjectArrayWithPattern() 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/deepobject-array-with-pattern.yaml", null, new ParseOptions()).getOpenAPI();
+        codegen.setOutputDir(output.getAbsolutePath());
+
+        codegen.additionalProperties().put(CXFServerFeatures.LOAD_TEST_DATA_FROM_FILE, "true");
+
+        ClientOptInput input = new ClientOptInput()
+                .openAPI(openAPI)
+                .config(codegen);
+
+        DefaultGenerator generator = new DefaultGenerator();
+        List<File> files = generator.opts(input).generate();
+
+        //Then the java files are compilable
+        validateJavaSourceFiles(files);
+
+        TestUtils.ensureContainsFile(files, output, "src/gen/java/org/openapitools/model/Options.java");
+        TestUtils.assertFileContains(output.toPath().resolve("src/gen/java/org/openapitools/model/Options.java"), "List< @Pattern(regexp=\"^[A-Z].*\")String> getA()");
+    }
 }

modules/openapi-generator/src/test/resources/3_0/deepobject-array-with-pattern.yaml

@@ -0,0 +1,33 @@
+openapi: 3.0.3
+info:
+  title: deepobject-array-with-pattern-test
+  version: 1.0.0
+paths:
+  /test:
+    get:
+      operationId: test
+      parameters:
+        - name: options
+          in: query
+          required: false
+          style: deepObject
+          schema:
+            $ref: '#/components/schemas/Options'
+          explode: true
+      responses:
+        '200':
+          description: OK
+          content:
+            text/plain:
+              schema:
+                type: string
+components:
+  schemas:
+    Options:
+      type: object
+      properties:
+        a:
+          type: array
+          items:
+            type: string
+            pattern: '^[A-Z].*'