Closing due to invalid data in frame

Describe the bug After I successfully connected to the server for one minute, an error was reported and the connection was terminated forcibly.

Expected behavior I hope to know the reason, or ignore the error to keep the connection open.

Debug log

2021-06-22 07:34:40.322 ERROR 54885 --- [ctReadThread-64] org.java_websocket.WebSocketImpl         : Closing due to invalid data in frame

org.java_websocket.exceptions.InvalidFrameException: closecode must not be sent over the wire: 60015
    at org.java_websocket.framing.CloseFrame.isValid(CloseFrame.java:241)
    at org.java_websocket.drafts.Draft_6455.translateSingleFrame(Draft_6455.java:572)
    at org.java_websocket.drafts.Draft_6455.translateFrame(Draft_6455.java:739)
    at org.java_websocket.WebSocketImpl.decodeFrames(WebSocketImpl.java:398)
    at org.java_websocket.WebSocketImpl.decode(WebSocketImpl.java:233)
    at org.java_websocket.client.WebSocketClient.run(WebSocketClient.java:516)
    at java.base/java.lang.Thread.run(Thread.java:832)

Connection closed by us Code: 1002 Reason: closecode must not be sent over the wire: 60015
org.java_websocket.exceptions.InvalidFrameException: closecode must not be sent over the wire: 60015
    at org.java_websocket.framing.CloseFrame.isValid(CloseFrame.java:241)
    at org.java_websocket.drafts.Draft_6455.translateSingleFrame(Draft_6455.java:572)
    at org.java_websocket.drafts.Draft_6455.translateFrame(Draft_6455.java:739)
    at org.java_websocket.WebSocketImpl.decodeFrames(WebSocketImpl.java:398)
    at org.java_websocket.WebSocketImpl.decode(WebSocketImpl.java:233)
    at org.java_websocket.client.WebSocketClient.run(WebSocketClient.java:516)
    at java.base/java.lang.Thread.run(Thread.java:832)

Environment(please complete the following information):

Version used: 1.5.2
Java version: openjdk14
Operating System and version: ubuntu 20.0.4
Endpoint Name and version: test url wss://ws.okex.com:8443/ws/v5/public
Link to your project:

Additional context Code:

package pro.ails.ant.web.rest;

import org.java_websocket.handshake.ServerHandshake;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.*;

import org.java_websocket.client.WebSocketClient;
import org.java_websocket.drafts.Draft_6455;

/**
 * REST controller for managing {@link pro.ails.ant.domain.OkexKMap}.
 */
@Component
//@RequestMapping("/api")
public class WebSocketCollectResource extends WebSocketClient {

    private final Logger log = LoggerFactory.getLogger(WebSocketCollectResource.class);

    private static final String ENTITY_NAME = "webSocketCollect";

    @Value("${jhipster.clientApp.name}")
    private String applicationName;

    public WebSocketCollectResource() throws URISyntaxException {
        super(new URI("wss://ws.okex.com:8443/ws/v5/public"), new Draft_6455());

        this.setProxy(new Proxy(Proxy.Type.HTTP, new InetSocketAddress("127.0.0.1", 1081)));
        this.connect();
    }

    @Override
    public void onOpen(ServerHandshake handshakedata) {
        // send("Hello, it is me. Mario :)");
        System.out.println("opened connection");
        // if you plan to refuse connection based on ip or httpfields overload: onWebsocketHandshakeReceivedAsClient
    }

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

    @Override
    public void onClose(int code, String reason, boolean remote) {
        // The codecodes are documented in class org.java_websocket.framing.CloseFrame
        System.out.println(
            "Connection closed by " + (remote ? "remote peer" : "us") + " Code: " + code + " Reason: "
                + reason);
    }

    @Override
    public void onError(Exception ex) {
        ex.printStackTrace();
        // if the error is fatal then onClose will be called additionally
    }
}

TooTallNate / Java-WebSocket

Closing due to invalid data in frame #1158