NPE occurs when outputting an OpenAPI document since 2.5.0

springdoc-openapi-starter-common/src/main/java/org/springdoc/core/service/OperationService.java

@@ -3,7 +3,7 @@
  *  *
  *  *  *
  *  *  *  *
- *  *  *  *  * Copyright 2019-2022 the original author or authors.
+ *  *  *  *  * Copyright 2019-2024 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.
@@ -412,7 +412,7 @@ private Optional<ApiResponses> getApiResponses(
 
 			buildResponseContent(methodAttributes, components, classProduces, methodProduces, apiResponsesOp, response, apiResponseObject);
 
-			AnnotationsUtils.getHeaders(response.headers(), null, propertyResolverUtils.isOpenapi31()).ifPresent(apiResponseObject::headers);
+			AnnotationsUtils.getHeaders(response.headers(), components, null, propertyResolverUtils.isOpenapi31()).ifPresent(apiResponseObject::headers);
 			// Make schema as string if empty
 			calculateHeader(apiResponseObject);
 			if (isResponseObject(apiResponseObject)) {

springdoc-openapi-starter-webmvc-api/src/test/java/test/org/springdoc/api/v30/app218/HelloController.java

@@ -0,0 +1,63 @@
+/*
+ *
+ *  *
+ *  *  *
+ *  *  *  * Copyright 2019-2024 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.app218;
+
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.headers.Header;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import org.springframework.http.HttpHeaders;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.net.URI;
+
+
+@RestController
+@RequestMapping("/")
+public class HelloController {
+
+    @Operation(
+        summary = "Summary",
+        description = "This is description.",
+        tags = {"Sample"},
+        responses = {
+            @ApiResponse(
+                responseCode = "201",
+                description = "201 (Created)",
+                headers =
+                @Header(
+                    name = HttpHeaders.LOCATION,
+                    description = "Sample endpoint",
+                    schema = @Schema(implementation = URI.class)
+                )
+            )
+        }
+    )
+    @GetMapping
+    public String get() {
+        return "Hello World!";
+    }
+}

springdoc-openapi-starter-webmvc-api/src/test/java/test/org/springdoc/api/v30/app218/SpringDocApp218Test.java

@@ -0,0 +1,36 @@
+/*
+ *
+ *  * Copyright 2019-2024 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.app218;
+
+import org.springdoc.core.customizers.SpecPropertiesCustomizer;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.SpringBootTest;
+import test.org.springdoc.api.v30.AbstractSpringDocV30Test;
+
+/**
+ * <p>
+ * A test for {@link SpecPropertiesCustomizer}
+ */
+@SpringBootTest
+public class SpringDocApp218Test extends AbstractSpringDocV30Test {
+
+	@SpringBootApplication
+	static class SpringDocTestApp {}
+
+}

springdoc-openapi-starter-webmvc-api/src/test/resources/results/3.0.1/app218.json

@@ -0,0 +1,48 @@
+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "OpenAPI definition",
+    "version": "v0"
+  },
+  "servers": [
+    {
+      "url": "http://localhost",
+      "description": "Generated server url"
+    }
+  ],
+  "paths": {
+    "/": {
+      "get": {
+        "tags": [
+          "Sample"
+        ],
+        "summary": "Summary",
+        "description": "This is description.",
+        "operationId": "get",
+        "responses": {
+          "201": {
+            "description": "201 (Created)",
+            "headers": {
+              "Location": {
+                "description": "Sample endpoint",
+                "style": "simple",
+                "schema": {
+                  "type": "string",
+                  "format": "uri"
+                }
+              }
+            },
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "string"
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  },
+  "components": {}
+}