diff -r b065aeb8e26b -r 314007859004 jdk/src/share/classes/java/util/function/UnaryOperator.java
--- a/jdk/src/share/classes/java/util/function/UnaryOperator.java	Fri Feb 08 09:35:14 2013 -0800
+++ b/jdk/src/share/classes/java/util/function/UnaryOperator.java	Fri Feb 08 16:00:23 2013 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 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
@@ -32,6 +32,7 @@
  *
  * @since 1.8
  */
+@FunctionalInterface
 public interface UnaryOperator<T> {
 
     /**