question: private synchronized boolean pollStatsBroker ( Destination queue ) { statsMessageListener . setDestination ( queue ) ; Timestamp timestamp = new Timestamp ( System . currentTimeMillis ( ) ) ; LOGGER . debug ( "Setting the destination to " + getQueueName ( queue ) + " at " + timestamp ) ; jmsTemplate . execute ( STATS_BROKER_DESTINATION + getQueueName ( queue ) , new ProducerCallbackImpl ( statsQueue ) ) ; try { Thread . sleep ( 3 * 1000 ) ; } catch ( InterruptedException e ) { e . printStackTrace ( ) ; } return statsMessageListener . getStats ( ) != null ; }
target:  poll  the statistics broker plugin