Android onConfigurationChanged() is not being called in Activity

I realize that there are a couple other posts on this topic, however the solutions for those posts are not working for me.

Basically, I want to cease my Activity from restarting upon a device orientation change. To do this, I have modified the activity in the manifest file:

        <activity android:name=".MyActivity" android:configChanges="orientation|keyboardHidden"></activity>

and I have overridden onConfigurationChanged() in my Activity:

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    System.out.println("IN onConfigurationChanged()");
}

However, the activity is still restarting upon an orientation change, and the onConfigurationChanged() method is not being called.

Does anyone know why this may be happening?