重启时 Netty 线程阻塞

Question

public class JudgeUnixServer {

    private static final String socketFile = ResourceConfig.getConfigString("judge.socket.fileName");
    private ServerBootstrap serverBootstrap;
    private EpollEventLoopGroup boss;
    private EpollEventLoopGroup  worker;
    public void init() {
        this.boss = new EpollEventLoopGroup();
        this.worker = new EpollEventLoopGroup();
        this.serverBootstrap = new ServerBootstrap();
        JudgeUnixDomainChannelInit channelInit = new JudgeUnixDomainChannelInit();
        this.serverBootstrap.group(this.boss,this.worker)
                .channel(EpollServerDomainSocketChannel.class)
                .option(UnixChannelOption.SO_BACKLOG,128)
//                .childOption(UnixChannelOption.SO_REUSEADDR,true)
                .childHandler(channelInit);
    }

    public void start() {
        init();
//        log.info("..........判题机Unix套接域正在启动.........");
        try {
            ChannelFuture channelFuture = this.serverBootstrap.bind(new DomainSocketAddress(socketFile)).sync();
            channelFuture.channel().closeFuture().sync();
        } catch (InterruptedException e) {
            log.error(e.getLocalizedMessage(),e);
        }
        this.boss.shutdownGracefully();
        this.worker.shutdownGracefully();
    }


}

接下来是Spring Boot的全局启动

@SpringBootApplication
public class JudgmentApplication  implements CommandLineRunner {

    public static void main(String[] args) {
        SpringApplication.run(JudgmentApplication.class, args);
    }

    @Override
    public void run(String... args) throws Exception {
        new Thread(() -> {
        JudgeUnixServer server=  new JudgeUnixServer();
        server.start();
        }).start();
    }
}

我在编译成Jar包部署成功的时候，有时候重启的时候会全局阻塞。

然后定位到代码的问题，就是这行代码被阻塞了

我被这个问题困扰了两天，我迫切需要一个解决方案