Github user martin-g commented on the issue:
https://github.com/apache/wicket/pull/287
AFAIU this PR replaces JUnit 4.x with JUnit 5.x. Am I correct ?
I've seen usage of opentest4j classes which I guess come as transitive
dependency of JUnit 5.x.
I am fine with such kind of change in `master` branch (Wicket 9.x). But I'm
afraid we cannot do this change in 8.x.---
