Jenkins: None of the test reports contained any result
Turns out that this is a misleading message, it will occurs if NO tests reports are found if you allow empty archives to not fail the build (which is the case here, some java plugin generate tests, some other don't).
In this case it was a typo in the path. For some reason the files were archived correctly, even with the typo (?!).
I am letting this post here with the answer, just removed the link, in case someone run into the same misleading error message.