public int decrementSubscriberCount(){
  if (isAvailable()) {
    return jmdnsSubscriberCount.decrementAndGet();
  }
  return 0;
}

public int decrementSubscriberCount ( ) { if ( isAvailable ( ) ) { return jmdnsSubscriberCount . decrementAndGet ( ) ; } return 0 ; }
decrements the count of jmdns subscribers .
