Update Javadoc in DefaultHandlerExceptionResolver to reflect changes

See gh-27052

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

@@ -257,7 +257,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param response current HTTP response
 	 * @param handler the executed handler, or {@code null} if none chosen
 	 * at the time of the exception (for example, if multipart resolution failed)
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	@Nullable
@@ -277,7 +278,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	@Nullable
@@ -297,7 +299,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	@Nullable
@@ -315,7 +318,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 * @since 4.2
 	 */
@@ -334,7 +338,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	@Nullable
@@ -351,7 +356,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	@Nullable
@@ -370,7 +376,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	@Nullable
@@ -388,7 +395,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	@Nullable
@@ -407,7 +415,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param response current HTTP response
 	 * @param handler the executed handler, or {@code null} if none chosen
 	 * at the time of the exception (for example, if multipart resolution failed)
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 * @since 4.0
 	 */
@@ -428,7 +437,8 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param response current HTTP response
 	 * @param handler the executed handler, or {@code null} if none chosen
 	 * at the time of the exception (for example, if multipart resolution failed)
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled, or
+	 * {@code null} indicating the exception should be handled in {@link #handleErrorResponse}
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 * @since 4.2.8
 	 */
@@ -449,7 +459,7 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 * @since 6.0
 	 */
@@ -485,7 +495,7 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	protected ModelAndView handleConversionNotSupported(ConversionNotSupportedException ex,
@@ -503,7 +513,7 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	protected ModelAndView handleTypeMismatch(TypeMismatchException ex,
@@ -523,7 +533,7 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	protected ModelAndView handleHttpMessageNotReadable(HttpMessageNotReadableException ex,
@@ -544,7 +554,7 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	protected ModelAndView handleHttpMessageNotWritable(HttpMessageNotWritableException ex,
@@ -562,7 +572,7 @@ public class DefaultHandlerExceptionResolver extends AbstractHandlerExceptionRes
 	 * @param request current HTTP request
 	 * @param response current HTTP response
 	 * @param handler the executed handler
-	 * @return an empty ModelAndView indicating the exception was handled
+	 * @return an empty {@code ModelAndView} indicating the exception was handled
 	 * @throws IOException potentially thrown from {@link HttpServletResponse#sendError}
 	 */
 	protected ModelAndView handleBindException(BindException ex, HttpServletRequest request,