Apache server : Reverse proxy and websockets via mod_proxy_wstunnel
Trailing slash must be added to path, it's necessary to handle web socket requests as GET requests (httpd.apache.org/docs/2.4/mod/mod_proxy.html#proxypass)
something like:
ProxyPass /my_app/BasicWebsocketServlet/ ws://1X.X.X.1:8080/my_app/BasicWebsocketServlet/ retry=0
ProxyPassReverse /my_app/BasicWebsocketServlet/ ws://1X.X.X.1:8080/web_pmr/BasicWebsocketServlet/ retry=0