Executors thread pools

gistfile1.java

public static ExecutorService newCachedThreadPool() {
   return new ThreadPoolExecutor(0, Integer.MAX_VALUE,
                                 60L, TimeUnit.SECONDS,
                                 new SynchronousQueue<Runnable>());
}

public static ExecutorService newFixedThreadPool(int nThreads) {
   return new ThreadPoolExecutor(nThreads, nThreads,
                                 0L, TimeUnit.MILLISECONDS,
                                 new LinkedBlockingQueue<Runnable>());
}