Merge branch '1.5.x'

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/support/ErrorPageFilter.java

@@ -181,7 +181,7 @@ public class ErrorPageFilter implements Filter, ErrorPageRegistry {
 		request.setAttribute(ERROR_EXCEPTION, ex);
 		request.setAttribute(ERROR_EXCEPTION_TYPE, ex.getClass());
 		response.reset();
-		response.sendError(500, ex.getMessage());
+		response.setStatus(500);
 		request.getRequestDispatcher(path).forward(request, response);
 		request.removeAttribute(ERROR_EXCEPTION);
 		request.removeAttribute(ERROR_EXCEPTION_TYPE);

spring-boot-tests/spring-boot-deployment-tests/spring-boot-deployment-test-tomcat/src/main/java/sample/SampleController.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -16,6 +16,10 @@
 
 package sample;
 
+import java.io.IOException;
+
+import javax.servlet.http.HttpServletResponse;
+
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -27,4 +31,14 @@ public class SampleController {
 		return "Hello World";
 	}
 
+	@RequestMapping("/send-error")
+	public void sendError(HttpServletResponse response) throws IOException {
+		response.sendError(500);
+	}
+
+	@RequestMapping("/exception")
+	public void exception() {
+		throw new RuntimeException();
+	}
+
 }

spring-boot-tests/spring-boot-deployment-tests/spring-boot-deployment-test-tomcat/src/test/java/sample/SampleTomcatDeployApplicationIT.java

@@ -16,10 +16,14 @@
 
 package sample;
 
+import java.net.URI;
+
 import org.junit.Test;
 
 import org.springframework.boot.test.web.client.TestRestTemplate;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.RequestEntity;
 import org.springframework.http.ResponseEntity;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -29,13 +33,14 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class SampleTomcatDeployApplicationIT {
 
+	private final TestRestTemplate rest = new TestRestTemplate();
+
 	private int port = Integer.valueOf(System.getProperty("port"));
 
 	@Test
 	public void testHome() throws Exception {
 		String url = "http://localhost:" + this.port + "/bootapp/";
-		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(url,
-				String.class);
+		ResponseEntity<String> entity = this.rest.getForEntity(url, String.class);
 		assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 		assertThat(entity.getBody()).isEqualTo("Hello World");
 	}
@@ -50,4 +55,71 @@ public class SampleTomcatDeployApplicationIT {
 		assertThat(entity.getBody()).isEqualTo("{\"status\":\"UP\"}");
 	}
 
+	@Test
+	public void errorFromExceptionForRequestAcceptingAnythingProducesAJsonResponse()
+			throws Exception {
+		assertThatErrorFromExceptionProducesExpectedResponse(MediaType.ALL,
+				MediaType.APPLICATION_JSON);
+	}
+
+	@Test
+	public void errorFromExceptionForRequestAcceptingJsonProducesAJsonResponse()
+			throws Exception {
+		assertThatErrorFromExceptionProducesExpectedResponse(MediaType.APPLICATION_JSON,
+				MediaType.APPLICATION_JSON);
+	}
+
+	@Test
+	public void errorFromExceptionForRequestAcceptingHtmlProducesAnHtmlResponse()
+			throws Exception {
+		assertThatErrorFromExceptionProducesExpectedResponse(MediaType.TEXT_HTML,
+				MediaType.TEXT_HTML);
+	}
+
+	@Test
+	public void sendErrorForRequestAcceptingAnythingProducesAJsonResponse()
+			throws Exception {
+		assertThatSendErrorProducesExpectedResponse(MediaType.ALL,
+				MediaType.APPLICATION_JSON);
+	}
+
+	@Test
+	public void sendErrorForRequestAcceptingJsonProducesAJsonResponse() throws Exception {
+		assertThatSendErrorProducesExpectedResponse(MediaType.APPLICATION_JSON,
+				MediaType.APPLICATION_JSON);
+	}
+
+	@Test
+	public void sendErrorForRequestAcceptingHtmlProducesAnHtmlResponse()
+			throws Exception {
+		assertThatSendErrorProducesExpectedResponse(MediaType.TEXT_HTML,
+				MediaType.TEXT_HTML);
+	}
+
+	private void assertThatSendErrorProducesExpectedResponse(MediaType accept,
+			MediaType contentType) {
+		RequestEntity<Void> request = RequestEntity
+				.get(URI.create("http://localhost:" + this.port + "/bootapp/send-error"))
+				.accept(accept).build();
+		ResponseEntity<String> response = this.rest.exchange(request, String.class);
+		assertThat(response.getStatusCode()).isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR);
+		assertThat(contentType.isCompatibleWith(response.getHeaders().getContentType()))
+				.as("%s is compatible with %s", contentType,
+						response.getHeaders().getContentType())
+				.isTrue();
+	}
+
+	private void assertThatErrorFromExceptionProducesExpectedResponse(MediaType accept,
+			MediaType contentType) {
+		RequestEntity<Void> request = RequestEntity
+				.get(URI.create("http://localhost:" + this.port + "/bootapp/exception"))
+				.accept(accept).build();
+		ResponseEntity<String> response = this.rest.exchange(request, String.class);
+		assertThat(response.getStatusCode()).isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR);
+		assertThat(contentType.isCompatibleWith(response.getHeaders().getContentType()))
+				.as("%s is compatible with %s", contentType,
+						response.getHeaders().getContentType())
+				.isTrue();
+	}
+
 }