code: public void stop() throws Exception {
  		this.logger.info( "Roboconf's scheduler is stopping..." );
  
  		// Remove the DM listener
  		if( this.manager != null ) {
  			this.manager.listenerDisappears( this.dmListener );
  			this.dmListener = null;
  		}
  
  		// Shutdown the scheduler
  		if( this.scheduler != null ) {
  			this.scheduler.shutdown();
  			this.scheduler = null;
  		}
  	}
docs: Stops the scheduler.
  <p>
  Invoked by iPojo.
  </p>