protected void stopService() throws Exception {
   scheduler.stopScheduler(timerIDCheckMD5, listenerID, timerListener);
   super.stopService();
 }
 /* (non-Javadoc)
  * @see org.jboss.system.ServiceMBeanSupport#stopService()
  */
 @Override
 protected void stopService() throws Exception {
   ContextUtils.unbind(new InitialContext(), PersistentManager.JNDI_NAME);
   super.stopService();
 }