private void sleep(){
  state=STATE.SLEEPING;
  this.nextActTime+=(SLEEP_TIME_MS + (int)(SLEEP_FUZZ * rnd.nextDouble())) * MockTimeSource.NANOSECONDS_IN_MILLISECOND;
}

private void sleep ( ) { state = STATE . SLEEPING ; this . nextActTime += ( SLEEP_TIME_MS + ( int ) ( SLEEP_FUZZ * rnd . nextDouble ( ) ) ) * MockTimeSource . NANOSECONDS_IN_MILLISECOND ; }
didn ' t get tokens , sleep for some time
