can't server login.

[ghost]

I witer this code:

package org.example;

import com.github.steveice10.mc.auth.exception.request.RequestException;
import com.github.steveice10.mc.auth.service.AuthenticationService;
import com.github.steveice10.mc.auth.service.MojangAuthenticationService;
import com.github.steveice10.mc.auth.service.MsaAuthenticationService;
import com.github.steveice10.mc.auth.service.SessionService;
import com.github.steveice10.mc.protocol.MinecraftConstants;
import com.github.steveice10.mc.protocol.MinecraftProtocol;
import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundLoginPacket;
import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundSystemChatPacket;
import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundChatPacket;
import com.github.steveice10.packetlib.ProxyInfo;
import com.github.steveice10.packetlib.Session;
import com.github.steveice10.packetlib.event.session.DisconnectedEvent;
import com.github.steveice10.packetlib.event.session.SessionAdapter;
import com.github.steveice10.packetlib.packet.Packet;
import com.github.steveice10.packetlib.tcp.TcpClientSession;
import net.kyori.adventure.text.Component;

import java.net.Proxy;
import java.time.Instant;

public class App {
    public static void main(String[] args) {
        login(.....);
    }

    private static void login(Boolean verify, String username, String password, Proxy proxy, ProxyInfo proxyInfo, String host, int port) {
        MinecraftProtocol protocol = new MinecraftProtocol("Never gonna give you up");
        if (verify) {
            try {
                AuthenticationService authService = new MsaAuthenticationService("");
                authService.setUsername(username);
                authService.setPassword(password);
                authService.setProxy(proxy);
                authService.login();

                protocol = new MinecraftProtocol(authService.getSelectedProfile(), authService.getAccessToken());
                System.out.println("Successfully authenticated user.");
            } catch (RequestException e) {
                e.printStackTrace();
                return;
            }
        }

        SessionService sessionService = new SessionService();
        sessionService.setProxy(proxy);

        Session client = new TcpClientSession(host, port, protocol, proxyInfo);
        client.setFlag(MinecraftConstants.SESSION_SERVICE_KEY, sessionService);
        client.addListener(new SessionAdapter() {
            @Override
            public void packetReceived(Session session, Packet packet) {
                if (packet instanceof ClientboundLoginPacket) {
                    session.send(new ServerboundChatPacket("Never gonna give you up", Instant.now().toEpochMilli(), 0, new byte[0], false));
                } else if (packet instanceof ClientboundSystemChatPacket) {
                    Component message = ((ClientboundSystemChatPacket) packet).getContent();
                    System.out.println("I- just " + message);
                    session.disconnect("Finished");
                }
            }

            @Override
            public void disconnected(DisconnectedEvent event) {
                System.out.println("Disconnected: " + event.getReason());
                if (event.getCause() != null) {
                    event.getCause().printStackTrace();
                }
            }
        });

        client.connect();
    }
}

I running on openjdk 7.
But error printed:

Successfully authenticated user.
Disconnected: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: ~~~
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: ~~~
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:716)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:707)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.lang.Thread.run(Thread.java:827)

How can I fix this?
Thank you

[ghost]

P.S. I can connect from the luna client, but can't connect this code.