java websocket error ....help

import javax.websocket.*;
import java.net.URI;
import java.util.Scanner;

@ClientEndpoint
public class Client {
@OnOpen
public void onOpen(Session session) {
System.out.println(session.getId()+“客户端连接”);
}

@OnClose
public void onClose() {
    System.out.println("client关闭");
}

@OnMessage
public void onMessage(String msg, Session session) {
    System.out.println("client" + session.getId() + "接收到的消息:" + msg);
}

public static void main(String[] args) {
    try {
        WebSocketContainer container = ContainerProvider.getWebSocketContainer();
        Session session = container.connectToServer(Client.class, URI.create("wss://stream.binance.com:9443/ws/bnbusdt@trade"));
        //控制台输入消息              ws://121.40.165.18:8800
        Scanner scanner = new Scanner(System.in);
        String msg;
        //输入quit退出
        while (!"quit".equals(msg = scanner.nextLine())) {
            session.getBasicRemote().sendText(msg);
        }
        session.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}

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