multithreading

 public static List<Item> parse() {
    CountDownLatch latch = new CountDownLatch(1000);
        for (int i = 1; i <= 1000; i++) {
        Executor executor = Executors.newFixedThreadPool(20);
            Parser thread = new Parser(latch);
            thread.setName(Integer.toString(i));
            threadCount++; //increase the number of working threads
            executor.submit(thread);
        }
    latch.await();
        return itemList;
}

public void run() {
    // jsut add the line after you code
    latch.countDown();
}