websocket-next access WebSocketConnection outside of @OnOpen or @OnMessage methods

[sharpe-developer]

Scenario: a websocket-next server accepts a connection from a client and then needs to stream data to the client within a Runnable launched within @OnOpen. The websocket-next WebSocketConnection is available in @OnOpen or @OnMessage methods but appears to be invalid in the Runnable context (refer to Access to the WebSocketConnection). How can a websocket-next server access the WebSocketConnection to send data to the connected client outside of the @OnOpen or @OnMessage methods?

[maxandersen]

I have the same question - unsure what the migration of jakarta's .sendText(msg, handler) actually is as in the handler I need to sometimes access the connection but I only have a Uni....

would be good to document some patterns for it.