我正在寻找优雅地停止java线程并发现,但我不知道如何检查这种情况的例子

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

public class GracefulShutdown {
    public static void main(String[] args) throws InterruptedException {
        ExecutorService executor = Executors.newFixedThreadPool(2);

        // 提交一个任务
        Future<?> future = executor.submit(() -> {
            for (int i = 0; i < 10; i++) {
                System.out.println("Task running...");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    System.out.println("Task interrupted...");
                    return;
                }
            }
            System.out.println("Task completed...");
        });

        // 等待一段时间
        Thread.sleep(5000);

        // 停止任务
        System.out.println("Shutting down executor...");
        executor.shutdownNow();

        // 检查任务是否已经完成
        if (future.isDone()) {
            System.out.println("Task is done.");
        } else {
            System.out.println("Task is not done.");
        }

        // 等待所有任务完成
        executor.awaitTermination(1, TimeUnit.SECONDS);
    }
}