Merge "Add a null check to prevent NPE" into nyc-dev

        }

        try {

            Rect taskRect = taskView.getFocusedThumbnailRect();

            if (taskRect != null) {

                Bitmap thumbnail = Bitmap.createScaledBitmap(task.thumbnail, taskRect.width(),

                        taskRect.height(), false);

                WindowManagerGlobal.getWindowManagerService()

                        .overridePendingAppTransitionAspectScaledThumb(thumbnail, taskRect.left,

                                taskRect.top, taskRect.width(), taskRect.height(), callback, true);

            }

        } catch (RemoteException e) {

            Log.w(TAG, "Failed to override transition: " + e);

        }