websocket server send text error 1002

[baichangda]

Environment Details

implementation group: 'io.helidon.webserver', name: 'helidon-webserver', version: '4.0.0'
implementation group: 'io.helidon.webserver', name: 'helidon-webserver-static-content', version: '4.0.0'
implementation group: 'io.helidon.webserver', name: 'helidon-webserver-websocket', version: '4.0.0'

---

Problem Description

helidon se websocket server send text to client in onOpen function produce client error 1002

Steps to reproduce

websocket server code like this

webcoekt client code like this

1、js websocket connect to helidon websocket server succeed
2、in onOpen(...) callback send msg to client、send function is 'WsSession send(String text, boolean last)'
3、then js websocket client error

[spericas]

@baichangda Seems like you're not showing the call to send(String, boolean) in your onOpen, right? Do you have sample code that matches your problem description? Is that in your WsSession class?

[baichangda]

@spericas there is call stack image

[spericas]

@baichangda I'm not able to reproduce your problem using Helidon 4.0.0 and Chrome 119.0.6045.123. Please find a simple WS app attached that you can build and run as a server. For the client part, I'm just pasting some JavaScript code into the browser's console:

ws = new WebSocket("ws://localhost:8080/ws")
ws.onopen = function (evt) {
    console.log("onopen " + evt.type);
}
ws.onmessage = function (evt) {
    console.log("onmessage " + evt.data)
    ws.send("Hello to you")
}
ws.onclose = function (evt) {
    console.log("onclose " + evt.code)
}

The server and client outputs are all as expected, without any errors. Have your tried other clients? Perhaps you can use this simple app and modify it to reproduce the issue.

quickstart-se.zip

[baichangda]

@spericas
i try send simple string, there is no problem
but complex string 、for example json like this、ws client will get error、you can try it
"{\"@class\":\"com.bcd.share.support_parser.impl.gb32960.data.VehicleRunData\",\"collectTime\":1686211816000,\"vehicleBaseData\":{\"vehicleStatus\":1,\"chargeStatus\":3,\"runMode\":1,\"vehicleSpeed\":6.4,\"totalMileage\":85.0,\"totalVoltage\":388.0,\"totalCurrent\":11.299988,\"soc\":28,\"dcStatus\":1,\"gearPosition\":46,\"resistance\":8192,\"pedalVal\":0,\"pedalStatus\":0},\"vehicleMotorData\":{\"num\":1,\"content\":[{\"no\":1,\"status\":1,\"controllerTemperature\":49,\"rotateSpeed\":443,\"rotateRectangle\":1.5,\"temperature\":34,\"inputVoltage\":389.0,\"current\":0.0}]},\"vehiclePositionData\":{\"status\":0,\"lng\":121.193701,\"lat\":31.28577},\"vehicleLimitValueData\":{\"maxVoltageSystemNo\":1,\"maxVoltageCode\":9,\"maxVoltage\":3.611,\"minVoltageSystemNo\":1,\"minVoltageCode\":55,\"minVoltage\":3.604,\"maxTemperatureSystemNo\":1,\"maxTemperatureNo\":1,\"maxTemperature\":29,\"minTemperatureSystemNo\":1,\"minTemperatureNo\":4,\"minTemperature\":28},\"vehicleAlarmData\":{\"maxAlarmLevel\":3,\"alarmFlag\":136071,\"chargeBadNum\":0,\"chargeBadCodes\":[],\"driverBadNum\":0,\"driverBadCodes\":[],\"engineBadNum\":0,\"engineBadCodes\":[],\"otherBadNum\":0,\"otherBadCodes\":[]},\"vehicleStorageVoltageData\":{\"num\":1,\"content\":[{\"no\":1,\"voltage\":388.0,\"current\":11.299988,\"total\":108,\"frameNo\":1,\"frameTotal\":108,\"singleVoltage\":[3.608,3.609,3.61,3.609,3.609,3.608,3.608,3.61,3.611,3.608,3.609,3.61,3.608,3.608,3.609,3.61,3.61,3.609,3.608,3.61,3.608,3.61,3.61,3.608,3.607,3.609,3.607,3.609,3.607,3.609,3.611,3.609,3.609,3.609,3.608,3.608,3.607,3.607,3.608,3.607,3.607,3.607,3.609,3.607,3.608,3.607,3.609,3.607,3.607,3.607,3.608,3.608,3.609,3.609,3.604,3.608,3.608,3.607,3.607,3.605,3.606,3.606,3.608,3.609,3.607,3.608,3.607,3.608,3.607,3.608,3.607,3.606,3.609,3.605,3.608,3.606,3.608,3.607,3.606,3.606,3.607,3.605,3.607,3.607,3.604,3.607,3.606,3.606,3.607,3.607,3.607,3.607,3.606,3.607,3.606,3.607,3.604,3.607,3.607,3.606,3.606,3.607,3.607,3.607,3.606,3.606,3.606,3.606]}]},\"vehicleStorageTemperatureData\":{\"num\":1,\"content\":[{\"no\":1,\"num\":12,\"temperatures\":[29,29,29,28,29,28,28,28,29,28,29,28]}]}}"

[spericas]

Issue has been fixed, will be available in release 4.0.1.