import java.net.*;

void main() throws Exception {
    var uuid = "3fa85f64-5717-4562-b3fc-2c963f66afa6";
    var address = new InetSocketAddress("ready-bell.com", 3137);

    try (var socket = new DatagramSocket()) {
        var bytes = ("Notify " + uuid).getBytes();
        socket.send(new DatagramPacket(bytes, bytes.length, address));

        var packet = new DatagramPacket(new byte[512], 512);
        socket.receive(packet);

        System.out.println(new String(packet.getData(), 0, packet.getLength()));
    }
}