All request parameters marked as required for Java controllers in mix…

…ed projects in 2.0.3. Fixes #2170

springdoc-openapi-kotlin/src/main/java/org/springdoc/kotlin/SpringDocKotlinConfiguration.kt

@@ -88,7 +88,7 @@ class SpringDocKotlinConfiguration(objectMapperProvider: ObjectMapperProvider) {
 				if (parameterDoc != null && parameterDoc.required)
 					parameterModel.required = parameterDoc.required
 				// parameter is not required if a default value is provided in @RequestParam
-				else if (requestParam != null && requestParam.defaultValue != ValueConstants.DEFAULT_NONE)
+				else if (requestParam != null && ((requestParam.defaultValue != ValueConstants.DEFAULT_NONE) || !requestParam.required))
 					parameterModel.required = false
 				else
 					parameterModel.required = kParameter.type.isMarkedNullable == false

springdoc-openapi-kotlin/src/test/java/test/org/springdoc/api/AbstractSpringDocTest.java

@@ -25,6 +25,8 @@
 
 import org.junit.jupiter.api.Test;
 import org.skyscreamer.jsonassert.JSONAssert;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springdoc.core.Constants;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -33,12 +35,15 @@
 import org.springframework.test.web.reactive.server.EntityExchangeResult;
 import org.springframework.test.web.reactive.server.WebTestClient;
 
+import static org.skyscreamer.jsonassert.JSONAssert.assertEquals;
+
 @WebFluxTest
 @ActiveProfiles("test")
 public abstract class AbstractSpringDocTest {
 
 	@Autowired
 	private WebTestClient webTestClient;
+	protected static final Logger LOGGER = LoggerFactory.getLogger(AbstractSpringDocTest.class);
 
 	public static String getContent(String fileName) {
 		try {
@@ -53,14 +58,20 @@ public static String getContent(String fileName) {
 
 	@Test
 	public void testApp() throws Exception {
-		EntityExchangeResult<byte[]> getResult = webTestClient.get().uri(Constants.DEFAULT_API_DOCS_URL).exchange()
-				.expectStatus().isOk().expectBody().returnResult();
-
-		String result = new String(getResult.getResponseBody());
-		String className = getClass().getSimpleName();
-		String testNumber = className.replaceAll("[^0-9]", "");
+		String result = null;
+		try {
+			EntityExchangeResult<byte[]> getResult = webTestClient.get().uri(Constants.DEFAULT_API_DOCS_URL).exchange()
+					.expectStatus().isOk().expectBody().returnResult();
 
-		String expected = getContent("results/app" + testNumber + ".json");
-		JSONAssert.assertEquals(expected, result, true);
+			result = new String(getResult.getResponseBody());
+			String className = getClass().getSimpleName();
+			String testNumber = className.replaceAll("[^0-9]", "");
+			String expected = getContent("results/app" + testNumber + ".json");
+			assertEquals(expected, result, true);
+		}
+		catch (java.lang.AssertionError e) {
+			LOGGER.error(result);
+			throw e;
+		}
 	}
 }

springdoc-openapi-kotlin/src/test/java/test/org/springdoc/api/app21/HelloController.java

@@ -0,0 +1,20 @@
+package test.org.springdoc.api.app21;
+
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@Tag(name = "Test")
+@RestController
+@RequestMapping(value = "/api/v2/test", produces = MediaType.APPLICATION_JSON_VALUE)
+public class HelloController {
+
+	@GetMapping("/")
+	public void greet(@RequestParam(required = false) @Parameter(required = false) final String name) {
+	}
+}

springdoc-openapi-kotlin/src/test/java/test/org/springdoc/api/app21/SpringDocApp21Test.java

@@ -0,0 +1,37 @@
+/*
+ *
+ *  *
+ *  *  *
+ *  *  *  *
+ *  *  *  *  * Copyright 2019-2022 the original author or authors.
+ *  *  *  *  *
+ *  *  *  *  * Licensed under the Apache License, Version 2.0 (the "License");
+ *  *  *  *  * you may not use this file except in compliance with the License.
+ *  *  *  *  * You may obtain a copy of the License at
+ *  *  *  *  *
+ *  *  *  *  *      https://www.apache.org/licenses/LICENSE-2.0
+ *  *  *  *  *
+ *  *  *  *  * Unless required by applicable law or agreed to in writing, software
+ *  *  *  *  * distributed under the License is distributed on an "AS IS" BASIS,
+ *  *  *  *  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  *  *  *  * See the License for the specific language governing permissions and
+ *  *  *  *  * limitations under the License.
+ *  *  *  *
+ *  *  *
+ *  *
+ *
+ */
+
+package test.org.springdoc.api.app21;
+import test.org.springdoc.api.AbstractSpringDocTest;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+
+
+public class SpringDocApp21Test extends AbstractSpringDocTest {
+
+	@SpringBootApplication
+	@ComponentScan(basePackages = { "org.springdoc", "test.org.springdoc.api.app21" })
+	static class SpringDocTestApp {}
+}

springdoc-openapi-kotlin/src/test/resources/results/app21.json

@@ -0,0 +1,39 @@
+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "OpenAPI definition",
+    "version": "v0"
+  },
+  "servers": [
+    {
+      "url": "",
+      "description": "Generated server url"
+    }
+  ],
+  "paths": {
+    "/api/v2/test/": {
+      "get": {
+        "tags": [
+          "Test"
+        ],
+        "operationId": "greet",
+        "parameters": [
+          {
+            "name": "name",
+            "in": "query",
+            "required": false,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK"
+          }
+        }
+      }
+    }
+  },
+  "components": {}
+}