--- old/src/java.desktop/share/classes/javax/sound/midi/MidiMessage.java	2016-08-12 17:03:10.000000000 +0300
+++ new/src/java.desktop/share/classes/javax/sound/midi/MidiMessage.java	2016-08-12 17:03:10.000000000 +0300
@@ -177,5 +177,6 @@
      *
      * @return a clone of this instance
      */
+    @Override
     public abstract Object clone();
 }