Is possible to combine Vaadin 8 and a Tomcat 9.x based websocket project

Vaadin 6 / 7 / 8
1

I want to combine a Vaadin 8 application and a existing websocket project?

Is this possible? I must ensure, that the path of the endpoint of the websocket co-exists with the Vaadin mapping.

A additional servlet with path is possible - annotation or web.xml.

But how can I integrate an endpoint of the websocket in the scope of Vaadin 8?

with best regards
Peter

2

I “fixed” this problem for me by switching to following websocket library

https://github.com/TooTallNate/Java-WebSocket

Before I played with Javalin, a very versatile web framework. But this lib is tied to Jetty Server which conflicts in a Tomcat environment. I know, there is the possibility to integrate Javalin inside Tomcat - but this did not work for the ws part.

Java-WebSocket is completely independent of the websocket layer of the the web container. Also you can start multiple independent websocket servers.

Peter