Fix crash with animation specs

Change-Id: I72ed5b19aaede0c58ea0b8665409721824ec6480

1 files changed, 4 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index a9bd71ff703b..3ad2610a88b5 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -3704,6 +3704,10 @@ public class WindowManagerService extends IWindowManager.Stub
         // This is used by freeform <-> recents windows transition. We need to synchronize
         // the animation with the appearance of the content of recents, so we will make
         // animation stay on the first or last frame a little longer.
+        if (specs == null) {
+            Slog.wtf(TAG, "prolongAnimationsFromSpecs: AppTransitionAnimationSpec is null!");
+            return;
+        }
         mTmpTaskIds.clear();
         for (int i = specs.length - 1; i >= 0; i--) {
             mTmpTaskIds.put(specs[i].taskId, 0);