question: @ SuppressWarnings ( "unused" ) public void checkDeliveryTime ( Message message ) throws JMSException { long creation = message . getJMSTimestamp ( ) ; long min = System . currentTimeMillis ( ) - ( offline . max + online . min ) * ( BROKER_RESTART > 0 ? 4 : 1 ) ; if ( false && min > creation ) { SimpleDateFormat df = new SimpleDateFormat ( "HH:mm:ss.SSS" ) ; exit ( "" + this + ".checkDeliveryTime failed. Message time: " + df . format ( new Date ( creation ) ) + ", min: " + df . format ( new Date ( min ) ) + "\r\n" + message ) ; } }
target:  Checks if the message was not delivered fast enough.