Spawn tons of fake LAN servers for minecraft =]

LanBomb.java

package io.deki.lanbomb;

import java.net.SocketException;

/**
 * @author Endre on 08.01.2020
 * @project mc
 **/
public class LanBomb {

    public static void main(String[] args) throws SocketException {
        for (int i = 0; i < 10; i++) new LanBombThread().start();
    }

}

LanBombThread.java

package io.deki.lanbomb;

import java.io.IOException;
import java.net.*;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Random;

/**
 * @author Endre on 08.01.2020
 * @project mcp 1.12
 **/
public class LanBombThread extends Thread {

    private final String motd;
    private final DatagramSocket socket;
    private final int port;

    private boolean isStopping = false;

    public LanBombThread() throws SocketException {
        byte[] array = new byte[64];
        new Random().nextBytes(array);
        this.motd = new String(array, Charset.forName("UTF-8"));
        this.port = getRandomPort();
        this.socket = new DatagramSocket();
    }

    public void run() {
        while (!this.isInterrupted() && !this.isStopping) {
            try {
                byte[] payload = generatePing().getBytes(StandardCharsets.UTF_8);
                InetAddress address = InetAddress.getByName("224.0.2.60");
                DatagramPacket datagrampacket = new DatagramPacket(payload, payload.length, address, 4445);
                this.socket.send(datagrampacket);
            } catch (IOException e) {
                e.printStackTrace();
                break;
            }

            try {
                sleep(1500L);
            } catch (InterruptedException e) {
            }
        }
    }

    private String generatePing() {
        return "[MOTD]" + this.motd + "[/MOTD][AD]" + this.port + "[/AD]";
    }

    private int getRandomPort() {
        int i = -1;

        try {
            ServerSocket serversocket = new ServerSocket(0);
            i = serversocket.getLocalPort();
            serversocket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        if (i <= 0) {
            i = 25564;
        }

        return i;
    }

}