public void ServiceMethod()
{
    ExecutorService executorService = Executors.newFixedThreadPool(10);
    executorService.execute(new Runnable() {
    public void run() {
        System.out.println("Asynchronous task");
    }
});
executorService.shutdown();
}

ExecutorService executorService = Executors.newFixedThreadPool(10);

static ExecutorService executorService = Executors.newFixedThreadPool(10);