diff --git a/quickstep/src/com/android/quickstep/RecentsModel.java b/quickstep/src/com/android/quickstep/RecentsModel.java
index 5d77a6e..d11d50b 100644
--- a/quickstep/src/com/android/quickstep/RecentsModel.java
+++ b/quickstep/src/com/android/quickstep/RecentsModel.java
@@ -54,7 +54,7 @@
  * Singleton class to load and manage recents model.
  */
 @TargetApi(Build.VERSION_CODES.O)
-public class RecentsModel extends TaskStackChangeListener implements IconChangeListener {
+public class RecentsModel implements IconChangeListener, TaskStackChangeListener {
 
     // We do not need any synchronization for this variable as its only written on UI thread.
     public static final MainThreadInitializedObject<RecentsModel> INSTANCE =
diff --git a/quickstep/src/com/android/quickstep/RotationTouchHelper.java b/quickstep/src/com/android/quickstep/RotationTouchHelper.java
index f952e0d..f1e20db 100644
--- a/quickstep/src/com/android/quickstep/RotationTouchHelper.java
+++ b/quickstep/src/com/android/quickstep/RotationTouchHelper.java
@@ -74,7 +74,6 @@
 
         @Override
         public void onActivityRotation(int displayId) {
-            super.onActivityRotation(displayId);
             // This always gets called before onDisplayInfoChanged() so we know how to process
             // the rotation in that method. This is done to avoid having a race condition between
             // the sensor readings and onDisplayInfoChanged() call