We've got PRs up for Arq. core and Tomcat Arq. adapter which allow Weld to execute most servlet tests on Tomcat. The one exception is a JsfTest where we seem to be blocked by a Jakarta 9 jsf impl release which never landed in central - https://github.com/eclipse-ee4j/mojarra/issues/4729.

Some WIP for this issue is visible on my branch. Note that it is dirty and Undertow is plain commented-out to be able to build and test.

I'll look into Jetty Arq. adapter now...