I made that change to log4j-api-test and that fixed the problem. Ralph
> On Nov 17, 2022, at 3:29 PM, Piotr P. Karwasz <piotr.karw...@gmail.com> wrote: > > On Thu, 17 Nov 2022 at 23:23, Ralph Goers <ralph.go...@dslextreme.com> wrote: >> >> I ran mvn test -Dtest=LoggerTest and it still fails. > > In `release-2.x` JUnit 5 is configured with: > > junit.jupiter.execution.parallel.mode.default = concurrent > > In `master` we have: > > junit.jupiter.execution.parallel.mode.default = same_thread > junit.jupiter.execution.parallel.mode.classes.default = concurrent > > and it seems much more stable. Running all the test methods of a class > concurrently is something we are not ready for. > > Piotr