bug#41394: java-testng: again nondeterministic test-failures?

[Julien Lepiller <julien@lepiller.eu>]

Le 19 mai 2020 05:27:45 GMT-04:00, "Björn Höfling" <bjoern.hoefling@bjoernhoefling.de> a écrit :
>Does anyone else have the same problems?
>
>On my system java-testng sometimes fails nondeterministically within
>the check phase:
>
>===============================================
>TestNG
>Total tests run: 1633, Failures: 2, Skips: 0
>===============================================
>
>Failures in <suite> :TestNG, <test> :Regression2
>test.thread.ParallelTestTest.verifyParallel()
>StackTrace:
> java.lang.AssertionError: 
>Expected size:<4> but was:<3> in:
><{59L=59L, 60L=60L, 62L=62L}>
>	at test.thread.ParallelTestTest.verifyExpected(Unknown Source)
>	at test.thread.ParallelTestTest.verifyParallel(Unknown Source)
>... Removed 24 stack frames 
>
>test.thread.ParallelTestTest.verifyParallel()
>StackTrace:
> java.lang.AssertionError: 
>Expected size:<4> but was:<3> in:
><{55L=55L, 56L=56L, 58L=58L}>
>	at test.thread.ParallelTestTest.verifyExpected(Unknown Source)
>	at test.thread.ParallelTestTest.verifyParallel(Unknown Source)
>... Removed 24 stack frames 
>
>
>Do others experience this too, or is it just my machine?
>
>On berlin, everything looks fine, that makes we wonder:
>
>https://ci.guix.gnu.org/search?query=%5Ejava-testng
>
>We had some problems in the past with other parallel tests:
>
>https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30526
>
>I also tried to update java-testng but that was not possible quickly,
>because of new/updated dependency-graph.
>
>Björn

During my work on getting a maven-build-system, I recently rebuilt testng multiple times, with no issue at all.