INT-2641: fix JavaDoc warnings

JIRA: https://jira.springsource.org/browse/INT-2641

spring-integration-core/src/main/java/org/springframework/integration/dispatcher/AbstractDispatcher.java

@@ -31,7 +31,7 @@ import org.springframework.util.Assert;
  * manages the registration of {@link MessageHandler}s. Although the implemented
  * dispatching strategies may invoke handles in different ways (e.g. round-robin
  * vs. failover), this class does maintain the order of the underlying
- * collection. See the {@link OrderedAwareLinkedHashSet} for more detail.
+ * collection. See the {@link OrderedAwareCopyOnWriteArraySet} for more detail.
  *
  * @author Mark Fisher
  * @author Iwein Fuld

spring-integration-core/src/main/java/org/springframework/integration/handler/DelayHandler.java

@@ -144,7 +144,7 @@ public class DelayHandler extends AbstractReplyProducingMessageHandler implement
 
 	/**
 	 * Checks if 'requestMessage' wasn't delayed before
-	 * ({@link #releaseMessageAfterDelay} and {@link DelayedMessageWrapper}).
+	 * ({@link #releaseMessageAfterDelay} and {@link DelayHandler.DelayedMessageWrapper}).
 	 * Than determine 'delay' for 'requestMessage' ({@link #determineDelayForMessage})
 	 * and if <code>delay > 0</code> schedules 'releaseMessage' task after 'delay'.
 	 *