[undertow-dev] Websocket: onMessage() called prior to onOpen()

Wildfly version: 8.2.0.Final Undertow version: 1.1.0.Final Hi, I am using Undertow web sockets. A remote client (nopoll c client) attempts to open a websocket session; the session is opened and the client immediately sends a message. However, at the ServerEndpoint, the onMessage handler is called prior to the onOpen handler. My server side implementation rejects messages received prior to open and even forces a session close. The client retries the session, and sometimes it is successful i.e. I do see an open first and then followed by a message by the client. Is this an known issue? Sorry, I couldn’t find a way to search the mailing-list archives. Thanks and Best Regards, GPN