int selectServer(int forceIndex){
  int index=forceIndex == -1 ? getLessSaturatedIndex() : forceIndex;
  serversCounters.incrementAndGet(index);
  return index;
}

int selectServer ( int forceIndex ) { int index = forceIndex == - 1 ? getLessSaturatedIndex ( ) : forceIndex ; serversCounters . incrementAndGet ( index ) ; return index ; }
returns the server index to use .
