private CountingThreadPoolExecutor createExecutor(int numThreads){
  return new CountingThreadPoolExecutor(numThreads,Integer.MAX_VALUE,30,TimeUnit.SECONDS,new LinkedBlockingQueue<Runnable>());
}

private CountingThreadPoolExecutor createExecutor ( int numThreads ) { return new CountingThreadPoolExecutor ( numThreads , Integer . MAX_VALUE , 30 , TimeUnit . SECONDS , new LinkedBlockingQueue < Runnable > ( ) ) ; }
creates a new executor object for spawning worker threads
