Merge "Fix NPE in MediaController2"
diff --git a/media/apex/java/android/media/MediaController2.java b/media/apex/java/android/media/MediaController2.java
index e85d997..4ea384a 100644
--- a/media/apex/java/android/media/MediaController2.java
+++ b/media/apex/java/android/media/MediaController2.java
@@ -317,7 +317,9 @@
                 isCanceled = !mRequestedCommandSeqNumbers.remove(seq);
             }
             if (isCanceled) {
-                resultReceiver.send(RESULT_INFO_SKIPPED, null);
+                if (resultReceiver != null) {
+                    resultReceiver.send(RESULT_INFO_SKIPPED, null);
+                }
                 return;
             }
             Session2Command.Result result = mCallback.onSessionCommand(