With WELD-2630 we have re-added servlet support in Weld 4. However, we still cannot test on Jetty because we are lacking Arquillian Jetty adapter to do that.

See this issue for more info - https://github.com/arquillian/arquillian-container-jetty/issues/43

There were some API changes in Jetty so an update is not as straightforward and I am not overly familiar with what needs to be done to get it working.