Thanks Stuart.  I need to avoid annotations since this will be configured dynamically.  I was wrong about the version, right now i'm on 2.0.9.Final.  I'm trying to create a websocket proxy.  I was able to get the ReceiveListener registered in Undertow and create a WebSocketClient.  I'm trying to pipe the data from the client through Undertow to the server, starting with a Text message:

@Override

protected void onText(WebSocketChannel webSocketChannel, StreamSourceFrameChannel messageChannel)

throws IOException {

PooledByteBuffer b = pool.allocate();

ByteBuffer buffer = b.getBuffer();

while (messageChannel.read(buffer) > 0) {

WebSockets.sendText(buffer, wsClient, null);

}

b.close();

}