Refine MaxUploadSizeExceededException handling

This commit refines MaxUploadSizeExceededException
handling in order to translate to a "413 Payload Too Large"
status code instead of "500 Internal Server Error", with
related ProblemDetail body.

Closes gh-27170

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/ResponseEntityExceptionHandlerTests.java

@@ -61,6 +61,7 @@ import org.springframework.web.context.request.WebRequest;
 import org.springframework.web.context.request.async.AsyncRequestTimeoutException;
 import org.springframework.web.context.support.StaticWebApplicationContext;
 import org.springframework.web.method.annotation.HandlerMethodValidationException;
+import org.springframework.web.multipart.MaxUploadSizeExceededException;
 import org.springframework.web.multipart.support.MissingServletRequestPartException;
 import org.springframework.web.servlet.DispatcherServlet;
 import org.springframework.web.servlet.ModelAndView;
@@ -78,6 +79,7 @@ import static org.mockito.BDDMockito.mock;
  * Unit tests for {@link ResponseEntityExceptionHandler}.
  *
  * @author Rossen Stoyanchev
+ * @author Sebastien Deleuze
  */
 public class ResponseEntityExceptionHandlerTests {
 
@@ -290,6 +292,11 @@ public class ResponseEntityExceptionHandlerTests {
 		testException(new AsyncRequestTimeoutException());
 	}
 
+	@Test
+	public void maxUploadSizeExceededException() {
+		testException(new MaxUploadSizeExceededException(1000));
+	}
+
 	@Test
 	public void controllerAdvice() throws Exception {
 		StaticWebApplicationContext ctx = new StaticWebApplicationContext();

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/support/DefaultHandlerExceptionResolverTests.java

@@ -44,6 +44,7 @@ import org.springframework.web.bind.MissingPathVariableException;
 import org.springframework.web.bind.MissingServletRequestParameterException;
 import org.springframework.web.bind.ServletRequestBindingException;
 import org.springframework.web.context.request.async.AsyncRequestTimeoutException;
+import org.springframework.web.multipart.MaxUploadSizeExceededException;
 import org.springframework.web.multipart.support.MissingServletRequestPartException;
 import org.springframework.web.servlet.HandlerExceptionResolver;
 import org.springframework.web.servlet.ModelAndView;
@@ -58,6 +59,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Unit tests for {@link DefaultHandlerExceptionResolver}.
  *
  * @author Arjen Poutsma
+ * @author Sebastien Deleuze
  */
 public class DefaultHandlerExceptionResolverTests {
 
@@ -246,6 +248,16 @@ public class DefaultHandlerExceptionResolverTests {
 		assertThat(response.getStatus()).as("Invalid status code").isEqualTo(503);
 	}
 
+	@Test
+	public void handleMaxUploadSizeExceededException() {
+		MaxUploadSizeExceededException ex = new MaxUploadSizeExceededException(1000);
+		ModelAndView mav = exceptionResolver.resolveException(request, response, null, ex);
+		assertThat(mav).as("No ModelAndView returned").isNotNull();
+		assertThat(mav.isEmpty()).as("No Empty ModelAndView returned").isTrue();
+		assertThat(response.getStatus()).as("Invalid status code").isEqualTo(413);
+		assertThat(response.getErrorMessage()).isEqualTo("Maximum upload size exceeded");
+	}
+
 	@Test
 	public void customModelAndView() {
 		ModelAndView expected = new ModelAndView();