JsonMappingException on UI render. Fixes #630

Author: bnasslahsen

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

@@ -195,8 +195,9 @@ private void buildApiResponses(Components components, MethodParameter methodPara
 			String httpCode = evaluateResponseStatus(methodParameter.getMethod(), methodParameter.getMethod().getClass(), isGeneric);
 			ApiResponse apiResponse = methodAttributes.getGenericMapResponse().containsKey(httpCode) ? methodAttributes.getGenericMapResponse().get(httpCode)
 					: new ApiResponse();
-			buildApiResponses(components, methodParameter, apiResponsesOp, methodAttributes, httpCode, apiResponse,
-					isGeneric);
+			if (httpCode != null)
+				buildApiResponses(components, methodParameter, apiResponsesOp, methodAttributes, httpCode, apiResponse,
+						isGeneric);
 		}
 	}
 

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/app116/FooErrorHandler.java

@@ -0,0 +1,15 @@
+package test.org.springdoc.api.app116;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@ControllerAdvice(assignableTypes = HelloController.class)
+public class FooErrorHandler {
+
+	@ExceptionHandler
+	public ResponseEntity<String> storeAssignmentPublishingError(Exception e) {
+		return new ResponseEntity<>("foo", HttpStatus.INTERNAL_SERVER_ERROR);
+	}
+}

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/app116/HelloController.java

@@ -0,0 +1,23 @@
+package test.org.springdoc.api.app116;
+
+import io.swagger.v3.oas.annotations.OpenAPIDefinition;
+import io.swagger.v3.oas.annotations.info.Info;
+import io.swagger.v3.oas.annotations.tags.Tag;
+
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api")
+@OpenAPIDefinition(info = @Info(title = "API Examples", version = "1.0"), tags = @Tag(name = "Operations"))
+public class HelloController {
+
+	@PostMapping("/foo")
+	public String create(@RequestBody String foo) {
+		return "foo";
+	}
+}
+
+

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/app116/SpringDocApp116Test.java

@@ -0,0 +1,13 @@
+package test.org.springdoc.api.app116;
+
+import test.org.springdoc.api.AbstractSpringDocTest;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+
+public class SpringDocApp116Test extends AbstractSpringDocTest {
+
+	@SpringBootApplication
+	static class SpringDocTestApp {}
+
+}

springdoc-openapi-webmvc-core/src/test/resources/results/app116.json

@@ -0,0 +1,51 @@
+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "API Examples",
+    "version": "1.0"
+  },
+  "servers": [
+    {
+      "url": "http://localhost",
+      "description": "Generated server url"
+    }
+  ],
+  "tags": [
+    {
+      "name": "Operations"
+    }
+  ],
+  "paths": {
+    "/api/foo": {
+      "post": {
+        "tags": [
+          "hello-controller"
+        ],
+        "operationId": "create",
+        "requestBody": {
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "string"
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "OK",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "string"
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  },
+  "components": {}
+}