--- old/src/share/classes/java/nio/file/PathMatcher.java	2013-02-06 18:04:59.000000000 -0800
+++ new/src/share/classes/java/nio/file/PathMatcher.java	2013-02-06 18:04:59.000000000 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 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
@@ -34,7 +34,7 @@
  * @see FileSystem#getPathMatcher
  * @see Files#newDirectoryStream(Path,String)
  */
-
+@FunctionalInterface
 public interface PathMatcher {
     /**
      * Tells if given path matches this matcher's pattern.