Events not firing? Using java socket.io client & netty-socketio on server - socket.io

Question

I know the client and server are connecting because my connect/disconnect events are firing. However, my custom events are not. I am using socket.io java client, and netty-socketio on the server. I usually use the socket.io javascript library which works seamlessly, so I am a bit lost as to why this is happening. I am writing this in Kotlin.
Client-Side
fun connectToServer(ipAddress : String)
{
socket = IO.socket("$ipAddress")
socket!!.on(Socket.EVENT_CONNECT) { obj ->
println("Connected To Server!!!")
}.on(EventNames.signOn) { obj ->
println(EventNames.signOn)
//cast value to string from server, hope for encrypted password
val encryptedPassword = obj[0] as String
when(encryptedPassword)
{
"no user" -> {
}
else -> {
val result = encryptedPassword!!.split("OR")
val isMatch = passwordTextField.text == dataProcessing.Encryption3().decryptValue("decrypt", result[0],result[1])
if(isMatch)
{
}
}
}
println("Encrypted Password: "+encryptedPassword)
}
// socket!!.on(Socket.EVENT_DISCONNECT, object : Emitter.Listener {
//
// override fun call(vararg args: Any) {}
//
// })
socket!!.connect()
// socket!!.open()
// socket!!.emit(Socket.EVENT_CONNECT, "Hello!")
socket!!.send("hey")
socket!!.emit(EventNames.requestClientSignOn, usernameTextField.text)
}
Server-Side
#Throws(InterruptedException::class, UnsupportedEncodingException::class)
fun server()
{
val config = Configuration()
config.setHostname("localhost")
config.setPort(PORT)
server = SocketIOServer(config)
server!!.addConnectListener {
println("Hello World!")
}
server!!.addEventListener(EventNames.requestClientSignOn, String::class.java) { client, data, ackRequest ->
println("Hello from requestClientSignOn..")
}
server!!.addDisconnectListener {
println("Client Disconnecting...")
}
server!!.addConnectListener {
println("client connected!! client: $it")
}
server!!.start()

Answer 1

You cannot use lambda expression in your event listeners, using netty-socketio on the sever.
Using the traditional EventListener solves this problem. I also converted the server to Kotlin, as it was easier to use the demo project as a reference.
server.addEventListener(EventNames.requestClientSignOn, String.class, new DataListener<String>() {
#Override
public void onData(SocketIOClient client, String username, AckRequest ackRequest) {
String isEncryptedPassword = new KOTS_EmployeeManager().getKOTS_User(KOTS_EmployeeManager.kotsUserType.CLIENT, username)
if(isEncryptedPassword != null)
{
//send back ack with encrypted password
ackRequest.sendAckData(isEncryptedPassword);
}else{
//send back ack with no user string
ackRequest.sendAckData("no user");
}
}
});