* @jmx.managed-operation description="Second lifecycle method called after mbeans attributes are set. During this method declared mbean dependencies are available and may be used. After completion the mbean should be completely usable."
* impact="ACTION"
*/
public void start () throws Exception
{
tracker = new MBeanTracker(server,new Class[]{PingPongMBean.class},null,false,null,true,this);
timer.scheduleAtFixedRate(new Pinger(),5000L,5000L);
}