/**
  * Closes the app. If an event listener is provided, the close app event is invoked. Must only be
  * used from your error activity.
  *
  * @param activity The current error activity. Must not be null.
  * @param eventListener The event listener as obtained by calling getEventListenerFromIntent.
  */
 public static void closeApplication(Activity activity, EventListener eventListener) {
   if (eventListener != null) {
     eventListener.onCloseAppFromErrorActivity();
   }
   activity.finish();
   killCurrentProcess();
 }