Felix> That is what I thought, too. But even changing the source of the test (with something, I know will break it), didn't work. Spock tests in the same package (src/components) will run just fine.
It turns out that junit5 tests were not executed since there was no junit-jupiter engine on the test classpath. junit4 worked because the vintage engine was there. I've fixed the issue in https://github.com/apache/jmeter/commit/e52305d6a4a867ad96e374fadeffe0b67e514894 Vladimir