我已经使用java创建了一个portscanner,但是当我点击执行它时就冻结了

import java.io.*;
import java.net.*;
import java.util.concurrent.*;

public class PortScanner {
    public static void main(String[] args) {
        String host = "localhost";
        int port = 80;
        int timeout = 1000;

        try {
            InetAddress address = InetAddress.getByName(host);
            System.out.println("Scanning port " + port + " on " + address.getHostAddress());

            ExecutorService executor = Executors.newFixedThreadPool(10);
            for (int i = 0; i < 10; i++) {
                int finalPort = port + i;
                executor.execute(() -> {
                    try {
                        Socket socket = new Socket();
                        socket.connect(new InetSocketAddress(address, finalPort), timeout);
                        System.out.println("Port " + finalPort + " is open");
                        socket.close();
                    } catch (IOException e) {
                        System.out.println("Port " + finalPort + " is closed");
                    }
                });
            }
            executor.shutdown();

        } catch (UnknownHostException e) {
            System.err.println("Unknown host: " + host);
        }
    }
}