Merge "Fix ErrorProne finding in WmTests" into tm-qpr-dev am: 2f186cfad9 am: 407512600f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20454888

Change-Id: I8e88aad4e4b34623fc29041d839c60cc57399089
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

services/tests/wmtests/src/com/android/server/wm/LetterboxConfigurationPersisterTest.java

@@ -35,6 +35,7 @@ import com.android.internal.annotations.VisibleForTesting;
 
 import junit.framework.Assert;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -72,6 +73,7 @@ public class LetterboxConfigurationPersisterTest {
         mLetterboxConfigurationPersister.start();
     }
 
+    @After
     public void tearDown() throws InterruptedException {
         deleteConfiguration(mLetterboxConfigurationPersister, mPersisterQueue);
         waitForCompletion(mPersisterQueue);