Handshake response not received

Code Help
1

Question:
So, im trying to make thing, that will send data from my laptop to the android phone. First of all im trying to connect to the server, i made server using Python, then, i made java class, that had to connect to the server, but when im trying - i get “Handshake response not received.” after few seconds of trying connection. What am i doing wrong?!


Repl link:
idk what meant by repl link, so i’ll put this https://gameplaytogether.akkdliasierva.repl.co

import asyncio
import websockets

async def server(websocket, path):
    while True:
        message = await websocket.recv()
        print(f"Received message: {message}")
      
        response = f"Hello from the server! You said: {message}"
        await websocket.send(response)

start_server = websockets.serve(server, "0.0.0.0", 8000)

loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
loop.run_until_complete(start_server)
loop.run_forever()



import org.json.JSONObject;
import javax.websocket.*;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.concurrent.CountDownLatch;

@ClientEndpoint
public class ServerConnection {
    private static CountDownLatch latch;

    private String url;

    public ServerConnection(String url)
    {
        this.url = url;
    }

    @OnOpen
    public void onOpen(Session session) {
        System.out.println("Connected to server");
    }

    @OnMessage
    public void onMessage(String message) {
        System.out.println("Received message: " + message);
    }

    @OnClose
    public void onClose(Session session, CloseReason closeReason) {
        System.out.println("Session closed: " + closeReason.getReasonPhrase());
        latch.countDown();
    }

    public boolean start()
    {

        latch = new CountDownLatch(1);

        try {
            WebSocketContainer container = ContainerProvider.getWebSocketContainer();
            String uri = "wss://gameplaytogether.akkdliasierva.repl.co";// did it for debug
            container.connectToServer(this, URI.create(uri));
            latch.await();
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }


    }

}