int n = 10;
    Executor executor = Executors.newFixedThreadPool(n);
    final BlockingQueue<Object> tasks = new ArrayBlockingQueue(1024);
    for (int i = 0; i < n; i++) {
        executor.execute(new Runnable() {
            @Override
            public void run() {
                try {
                    while (!Thread.currentThread().isInterrupted()) {
                        Object task = tasks.take();
                        // process task
                    }
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                }
            }
        });
    }
    tasks.put(new Object());