code: public void start() {
  
  		this.timer = new ScheduledThreadPoolExecutor( 1 );
  		this.timer.scheduleWithFixedDelay(
  				new CheckingRunnable( this.machineIdToConfigurators, this.cancelledMachineIds ),
  				0, this.delay, TimeUnit.MILLISECONDS );
  	}
docs: Starts a thread to periodically check machines under creation process.
  <p>
  The period is defined by {@link #delay} whose value is expressed in milliseconds
  and whose default value is {@value #DEFAULT_DELAY}.
  </p>
  <p>
  This method should be made invokable by iPojo.
  </p>