diff -r e7d5af0b11e9 -r eed64ee05369 jdk/src/share/classes/javax/sound/midi/MidiFileFormat.java
--- a/jdk/src/share/classes/javax/sound/midi/MidiFileFormat.java	Tue Jan 28 12:50:53 2014 +0400
+++ b/jdk/src/share/classes/javax/sound/midi/MidiFileFormat.java	Tue Jan 28 09:42:05 2014 -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
@@ -273,7 +273,7 @@
         } else {
             ret = (Map<String,Object>) (properties.clone());
         }
-        return (Map<String,Object>) Collections.unmodifiableMap(ret);
+        return Collections.unmodifiableMap(ret);
     }