--- old/src/java.desktop/share/classes/javax/sound/midi/spi/MidiDeviceProvider.java	2015-11-27 15:25:47.000000000 +0300
+++ new/src/java.desktop/share/classes/javax/sound/midi/spi/MidiDeviceProvider.java	2015-11-27 15:25:47.000000000 +0300
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2015, 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
@@ -26,6 +26,7 @@
 package javax.sound.midi.spi;
 
 import java.util.Arrays;
+import java.util.Objects;
 
 import javax.sound.midi.MidiDevice;
 
@@ -46,8 +47,10 @@
      *         is queried
      * @return {@code true} if the specified device is supported, otherwise
      *         {@code false}
+     * @throws NullPointerException if {@code info} is {@code null}
      */
     public boolean isDeviceSupported(final MidiDevice.Info info) {
+        Objects.requireNonNull(info);
         return Arrays.asList(getDeviceInfo()).contains(info);
     }
 
@@ -67,6 +70,7 @@
      * @throws IllegalArgumentException if the info object specified does not
      *         match the info object for a device supported by this
      *         {@code MidiDeviceProvider}
+     * @throws NullPointerException if {@code info} is {@code null}
      */
     public abstract MidiDevice getDevice(MidiDevice.Info info);
 }