Merge "Fix NPE when multi-window not supported" into tm-dev
diff --git a/tests/framework/base/windowmanager/src/android/server/wm/TaskFragmentOrganizerTestBase.java b/tests/framework/base/windowmanager/src/android/server/wm/TaskFragmentOrganizerTestBase.java
index 49586c4..1ec0a11 100644
--- a/tests/framework/base/windowmanager/src/android/server/wm/TaskFragmentOrganizerTestBase.java
+++ b/tests/framework/base/windowmanager/src/android/server/wm/TaskFragmentOrganizerTestBase.java
@@ -82,7 +82,9 @@
 
     @After
     public void tearDown() {
-        mTaskFragmentOrganizer.unregisterOrganizer();
+        if (mTaskFragmentOrganizer != null) {
+            mTaskFragmentOrganizer.unregisterOrganizer();
+        }
     }
 
     public static IBinder getActivityToken(@NonNull Activity activity) {