Github user mureinik commented on the issue:
https://github.com/apache/commons-lang/pull/374
@britter I was half way through rewriting the `SystemDefaultsSwitch` as a
JUnit Jupiter extension when I remembered your tweet from earlier this month
and figured out that you already did this work in JUnit Pioneer. I hope I'm not
stepping on any toes here, but if this conflicts with anything you had planned,
I'd gladly abandon this PR.---
