Fix typo in Javadoc

spring-messaging/src/main/java/org/springframework/messaging/handler/annotation/support/HeadersMethodArgumentResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2015 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.
@@ -22,7 +22,6 @@ import java.util.Map;
 import org.springframework.core.MethodParameter;
 import org.springframework.messaging.Message;
 import org.springframework.messaging.MessageHeaders;
-import org.springframework.messaging.handler.annotation.Header;
 import org.springframework.messaging.handler.annotation.Headers;
 import org.springframework.messaging.handler.invocation.HandlerMethodArgumentResolver;
 import org.springframework.messaging.support.MessageHeaderAccessor;
@@ -32,7 +31,7 @@ import org.springframework.util.ReflectionUtils;
 /**
  * Resolves the following method parameters:
  * <ul>
- * <li>Parameters assignable to {@link Map} annotated with {@link Header @Headers}
+ * <li>Parameters assignable to {@link Map} annotated with {@link Headers @Headers}
  * <li>Parameters of type {@link MessageHeaders}
  * <li>Parameters assignable to {@link MessageHeaderAccessor}
  * </ul>