Polishing

spring-webmvc/src/main/java/org/springframework/web/servlet/HandlerExceptionResolver.java

 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -46,8 +46,8 @@ public interface HandlerExceptionResolver {
 	 * @param handler the executed handler, or {@code null} if none chosen at the
 	 * time of the exception (for example, if multipart resolution failed)
 	 * @param ex the exception that got thrown during handler execution
-	 * @return a corresponding {@code ModelAndView} to forward to, or {@code null}
-	 * for default processing
+	 * @return a corresponding {@code ModelAndView} to forward to,
+	 * or {@code null} for default processing in the resolution chain
 	 */
 	@Nullable
 	ModelAndView resolveException(

spring-webmvc/src/main/java/org/springframework/web/servlet/handler/AbstractHandlerExceptionResolver.java

@@ -17,7 +17,6 @@
 package org.springframework.web.servlet.handler;
 
 import java.util.Set;
-
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
@@ -241,10 +240,11 @@ public abstract class AbstractHandlerExceptionResolver implements HandlerExcepti
 	 * @param handler the executed handler, or {@code null} if none chosen at the time
 	 * of the exception (for example, if multipart resolution failed)
 	 * @param ex the exception that got thrown during handler execution
-	 * @return a corresponding {@code ModelAndView} to forward to, or {@code null} for default processing
+	 * @return a corresponding {@code ModelAndView} to forward to,
+	 * or {@code null} for default processing in the resolution chain
 	 */
 	@Nullable
-	protected abstract ModelAndView doResolveException(HttpServletRequest request,
-			HttpServletResponse response, @Nullable Object handler, Exception ex);
+	protected abstract ModelAndView doResolveException(
+			HttpServletRequest request, HttpServletResponse response, @Nullable Object handler, Exception ex);
 
 }

spring-webmvc/src/main/java/org/springframework/web/servlet/handler/SimpleMappingExceptionResolver.java

 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -176,12 +176,13 @@ public class SimpleMappingExceptionResolver extends AbstractHandlerExceptionReso
 	 * @param handler the executed handler, or {@code null} if none chosen at the time
 	 * of the exception (for example, if multipart resolution failed)
 	 * @param ex the exception that got thrown during handler execution
-	 * @return a corresponding ModelAndView to forward to, or {@code null} for default processing
+	 * @return a corresponding {@code ModelAndView} to forward to,
+	 * or {@code null} for default processing in the resolution chain
 	 */
 	@Override
 	@Nullable
-	protected ModelAndView doResolveException(HttpServletRequest request, HttpServletResponse response,
-			@Nullable Object handler, Exception ex) {
+	protected ModelAndView doResolveException(
+			HttpServletRequest request, HttpServletResponse response, @Nullable Object handler, Exception ex) {
 
 		// Expose ModelAndView for chosen error view.
 		String viewName = determineViewName(ex, request);

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/annotation/ResponseStatusExceptionResolver.java

 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -67,8 +67,8 @@ public class ResponseStatusExceptionResolver extends AbstractHandlerExceptionRes
 
 	@Override
 	@Nullable
-	protected ModelAndView doResolveException(HttpServletRequest request, HttpServletResponse response,
-			@Nullable Object handler, Exception ex) {
+	protected ModelAndView doResolveException(
+			HttpServletRequest request, HttpServletResponse response, @Nullable Object handler, Exception ex) {
 
 		try {
 			if (ex instanceof ResponseStatusException) {
@@ -86,7 +86,7 @@ public class ResponseStatusExceptionResolver extends AbstractHandlerExceptionRes
 			}
 		}
 		catch (Exception resolveEx) {
-			logger.warn("Handling of @ResponseStatus resulted in Exception", resolveEx);
+			logger.warn("ResponseStatus handling resulted in exception", resolveEx);
 		}
 		return null;
 	}

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/support/DefaultHandlerExceptionResolver.java

@@ -164,8 +164,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 
 	@Override
 	@Nullable
-	protected ModelAndView doResolveException(HttpServletRequest request, HttpServletResponse response,
-			@Nullable Object handler, Exception ex) {
+	protected ModelAndView doResolveException(
+			HttpServletRequest request, HttpServletResponse response, @Nullable Object handler, Exception ex) {
 
 		try {
 			if (ex instanceof HttpRequestMethodNotSupportedException) {
@@ -547,7 +547,6 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 		return new ModelAndView();
 	}
 
-
 	/**
 	 * Invoked to send a server error. Sets the status to 500 and also sets the
 	 * request attribute "javax.servlet.error.exception" to the Exception.