code: public void stop(boolean displayDone) {
  
          if (m_timer != null) {
              m_timer.cancel();
              m_timer = null;
          }
          if (m_notification != null) {
              CmsNotification.get().removeMessage(m_notification);
              m_notification = null;
          }
          if (displayDone) {
              CmsNotification.get().send(CmsNotification.Type.NORMAL, Messages.get().key(Messages.GUI_DONE_0));
          }
      }
docs: Stops the timer.<p>
  
  Note: Has to be called manually on success.<p>
  
  @param displayDone <code>true</code> if you want to tell the user that the operation was successful