Merge "Check before closing the CloseGuard if not closed yet" into qt-dev

am: cc33160f6a

Change-Id: I2ce46bec53da48d6817690a9595098f70917323f

core/java/android/app/prediction/AppPredictor.java

@@ -271,7 +271,9 @@ public final class AppPredictor {
             if (mCloseGuard != null) {
                 mCloseGuard.warnIfOpen();
             }
-            destroy();
+            if (!mIsClosed.get()) {
+                destroy();
+            }
         } finally {
             super.finalize();
         }