Some time ago we introduced the concept of fixtures so that we could filter out some testing based on desired fixtures. And by default it runs only on SegmentMK if run without specifying anything (OAK-1855).
Currently is not that big issue as we don't have that many FixturesHelper compliant test but I asked it anyhow so that we'll have all the tests running on buildbot even in the future. https://issues.apache.org/jira/browse/BUILDS-44 Cheers Davide
