From b6b9950d13fd9f16be6ba7903d69f54a01639467 Mon Sep 17 00:00:00 2001
From: Winson Chung <winsonc@google.com>
Date: Mon, 19 Dec 2016 10:31:07 -0800
Subject: [PATCH] Fixing NPE when checking locked state.

- Regression from change 9f4ab32b1c62d16f03d14a50f13f04ddb58c541f.

Change-Id: I31ada9f4c051cf0aaa9a7bfa54c1b9bda1c64c16
Fixes: b/33738356
Test: Dock an app repeatedly
---
 .../com/android/systemui/recents/views/TaskViewThumbnail.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
index 780cbca3c2b3c..f753e44f22723 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
@@ -136,7 +136,7 @@ public class TaskViewThumbnail extends View {
         int thumbnailHeight = Math.min(viewHeight,
                 (int) (mThumbnailRect.height() * mThumbnailScale));
 
-        if (mTask.isLocked) {
+        if (mTask != null && mTask.isLocked) {
             canvas.drawRoundRect(0, 0, viewWidth, viewHeight, mCornerRadius, mCornerRadius,
                     mLockedPaint);
         } else if (mBitmapShader != null && thumbnailWidth > 0 && thumbnailHeight > 0) {