RFR: build: update to JUnit 5.8.2

Tue Dec 14 14:41:48 UTC 2021

On Tue, 14 Dec 2021 14:37:02 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

> > What's up with pre-submit tests on mac os?
> 
> Not sure. We seem to have intermittent failures in the test base. I haven't had time to investigate all of them. I ran your patch on my own mac and it passed, so I don't think it's related to the junit version.

But now it looks like it failed twice in a row. Maybe this warrants more investigation. Hm, my PR failed yesterday too.

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PR: https://git.openjdk.java.net/skara/pull/1260