ExceptionHandler in controller is not used by another controller. Fix…

springdoc-openapi-common/src/main/java/org/springdoc/core/GenericResponseService.java

@@ -103,6 +103,11 @@ public class GenericResponseService {
 	 */
 	private final PropertyResolverUtils propertyResolverUtils;
 
+	/**
+	 * The Controller infos.
+	 */
+	private final List<ControllerAdviceInfo> controllerInfos = new ArrayList<>();
+
 	/**
 	 * The Controller advice infos.
 	 */
@@ -234,7 +239,12 @@ public void buildGenericResponse(Components components, Map<String, Object> find
 				}
 			}
 			synchronized (this) {
-				controllerAdviceInfos.add(controllerAdviceInfo);
+				if (AnnotatedElementUtils.hasAnnotation(objClz, ControllerAdvice.class)) {
+					controllerAdviceInfos.add(controllerAdviceInfo);
+				}
+				else {
+					controllerInfos.add(controllerAdviceInfo);
+				}
 			}
 		}
 	}
@@ -636,25 +646,22 @@ else if (returnType instanceof ParameterizedType) {
 	 * @return the generic map response
 	 */
 	private synchronized Map<String, ApiResponse> getGenericMapResponse(Class<?> beanType) {
-		List<ControllerAdviceInfo> controllerAdviceInfosInThisBean = controllerAdviceInfos.stream()
-				.filter(controllerAdviceInfo ->
-						new ControllerAdviceBean(controllerAdviceInfo.getControllerAdvice()).isApplicableToBeanType(beanType))
-				.filter(controllerAdviceInfo -> beanType.equals(controllerAdviceInfo.getControllerAdvice().getClass()))
+		List<ControllerAdviceInfo> controllerAdviceInfosInThisBean = controllerInfos.stream()
+				.filter(controllerInfo -> beanType.equals(controllerInfo.getControllerAdvice().getClass()))
 				.collect(Collectors.toList());
 
 		Map<String, ApiResponse> genericApiResponseMap = controllerAdviceInfosInThisBean.stream()
-					.map(ControllerAdviceInfo::getApiResponseMap)
+				.map(ControllerAdviceInfo::getApiResponseMap)
 				.collect(LinkedHashMap::new, Map::putAll, Map::putAll);
 
 		List<ControllerAdviceInfo> controllerAdviceInfosNotInThisBean = controllerAdviceInfos.stream()
 				.filter(controllerAdviceInfo ->
 						new ControllerAdviceBean(controllerAdviceInfo.getControllerAdvice()).isApplicableToBeanType(beanType))
-				.filter(controllerAdviceInfo -> !beanType.equals(controllerAdviceInfo.getControllerAdvice().getClass()))
 				.collect(Collectors.toList());
 
 		for (ControllerAdviceInfo controllerAdviceInfo : controllerAdviceInfosNotInThisBean) {
 			controllerAdviceInfo.getApiResponseMap().forEach((key, apiResponse) -> {
-				if(!genericApiResponseMap.containsKey(key))
+				if (!genericApiResponseMap.containsKey(key))
 					genericApiResponseMap.put(key, apiResponse);
 			});
 		}

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/v30/app197/Example2Controller.java

@@ -0,0 +1,23 @@
+package test.org.springdoc.api.v30.app197;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/example2")
+public class Example2Controller {
+	@GetMapping("/")
+	public void index() {
+		throw new IllegalArgumentException();
+	}
+
+	@ExceptionHandler(IllegalArgumentException.class)
+	@ResponseStatus(HttpStatus.BAD_REQUEST)
+	public String customControllerException() {
+		return "example";
+	}
+}

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/v30/app197/ExampleController.java

@@ -0,0 +1,23 @@
+package test.org.springdoc.api.v30.app197;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/example")
+public class ExampleController {
+	@GetMapping("/")
+	public void index() {
+		throw new IllegalArgumentException();
+	}
+
+	@ExceptionHandler(IllegalArgumentException.class)
+	@ResponseStatus(HttpStatus.NOT_FOUND)
+	public String customControllerException() {
+		return "example";
+	}
+}

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/v30/app197/MyExceptionHandler.java

@@ -0,0 +1,23 @@
+package test.org.springdoc.api.v30.app197;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.HttpRequestMethodNotSupportedException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ControllerAdvice
+public class MyExceptionHandler {
+	@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
+	@ExceptionHandler({ HttpRequestMethodNotSupportedException.class })
+	@ResponseBody
+	public Map<String, Object> handleError() {
+		Map<String, Object> errorMap = new HashMap<String, Object>();
+		errorMap.put("message", "error");
+		return errorMap;
+	}
+}

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/v30/app197/SpringDocApp197Test.java

@@ -0,0 +1,34 @@
+/*
+ *
+ *  *
+ *  *  *
+ *  *  *  * 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.v30.app197;
+
+import test.org.springdoc.api.v30.AbstractSpringDocV30Test;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+public class SpringDocApp197Test extends AbstractSpringDocV30Test {
+
+	@SpringBootApplication
+	static class SpringDocTestApp {}
+
+}

springdoc-openapi-webmvc-core/src/test/resources/results/3.0.1/app197.json

@@ -0,0 +1,88 @@
+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "OpenAPI definition",
+    "version": "v0"
+  },
+  "servers": [
+    {
+      "url": "http://localhost",
+      "description": "Generated server url"
+    }
+  ],
+  "paths": {
+    "/example2/": {
+      "get": {
+        "tags": [
+          "example-2-controller"
+        ],
+        "operationId": "index",
+        "responses": {
+          "200": {
+            "description": "OK"
+          },
+          "400": {
+            "description": "Bad Request",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "string"
+                }
+              }
+            }
+          },
+          "500": {
+            "description": "Internal Server Error",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "object",
+                  "additionalProperties": {
+                    "type": "object"
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    "/example/": {
+      "get": {
+        "tags": [
+          "example-controller"
+        ],
+        "operationId": "index_1",
+        "responses": {
+          "200": {
+            "description": "OK"
+          },
+          "404": {
+            "description": "Not Found",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "string"
+                }
+              }
+            }
+          },
+          "500": {
+            "description": "Internal Server Error",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "object",
+                  "additionalProperties": {
+                    "type": "object"
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  },
+  "components": {}
+}