Polishing

spring-messaging/src/main/java/org/springframework/messaging/converter/ContentTypeResolver.java

@@ -34,8 +34,7 @@ public interface ContentTypeResolver {
 	 * Determine the {@link MimeType} of a message from the given MessageHeaders.
 	 * @param headers the headers to use for the resolution
 	 * @return the resolved {@code MimeType}, or {@code null} if none found
-	 * @throws org.springframework.util.InvalidMimeTypeException if the content type
-	 * is a String that cannot be parsed
+	 * @throws InvalidMimeTypeException if the content type is a String that cannot be parsed
 	 * @throws IllegalArgumentException if there is a content type but its type is unknown
 	 */
 	@Nullable

spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/HandlerMethodReturnValueHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2017 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.

spring-messaging/src/main/java/org/springframework/messaging/simp/config/ChannelRegistration.java

@@ -70,11 +70,15 @@ public class ChannelRegistration {
 	}
 
 	/**
+	 * Configure interceptors for the message channel.
 	 * @deprecated as of 4.3.12, in favor of {@link #interceptors(ChannelInterceptor...)}
 	 */
 	@Deprecated
-	public ChannelRegistration setInterceptors(ChannelInterceptor... interceptors) {
-		return interceptors(interceptors);
+	public ChannelRegistration setInterceptors(@Nullable ChannelInterceptor... interceptors) {
+		if (interceptors != null) {
+			this.interceptors.addAll(Arrays.asList(interceptors));
+		}
+		return this;
 	}
 
 

spring-messaging/src/main/java/org/springframework/messaging/simp/stomp/StompSession.java

@@ -148,6 +148,7 @@ public interface StompSession {
 
 		/**
 		 * Return the headers used on the SUBSCRIBE frame.
+		 * @since 5.0
 		 */
 		StompHeaders getSubscriptionHeaders();
 
@@ -160,6 +161,7 @@ public interface StompSession {
 		 * Alternative to {@link #unsubscribe()} with additional custom headers
 		 * to send to the server.
 		 * <p><strong>Note:</strong> There is no need to set the subscription id.
+		 * @since 5.0
 		 */
 		void unsubscribe(@Nullable StompHeaders stompHeaders);
 	}

spring-messaging/src/main/java/org/springframework/messaging/simp/user/UserDestinationResult.java

@@ -102,4 +102,5 @@ public class UserDestinationResult {
 		return "UserDestinationResult [source=" + this.sourceDestination + ", target=" + this.targetDestinations +
 				", subscribeDestination=" + this.subscribeDestination + ", user=" + this.user + "]";
 	}
+
 }