src/share/classes/java/util/Comparator.java

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@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -96,11 +96,11 @@
  * @author  Neal Gafter
  * @see Comparable
  * @see java.io.Serializable
  * @since 1.2
  */
-
+@FunctionalInterface
 public interface Comparator<T> {
     /**
      * Compares its two arguments for order.  Returns a negative integer,
      * zero, or a positive integer as the first argument is less than, equal
      * to, or greater than the second.<p>