--- old/src/share/classes/javax/sound/sampled/AudioFileFormat.java	2014-01-27 11:29:25.000000000 -0800
+++ new/src/share/classes/javax/sound/sampled/AudioFileFormat.java	2014-01-27 11:29:24.000000000 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2014, 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
@@ -251,7 +251,7 @@
         } else {
             ret = (Map<String,Object>) (properties.clone());
         }
-        return (Map<String,Object>) Collections.unmodifiableMap(ret);
+        return Collections.unmodifiableMap(ret);
     }