In JBT 4.1 [1], Hibernate Tools has 653 tests.
In JBT 4.2.0.Beta1 [2], Hibernate Tools has 63 tests (all passing).
In JBT 4.2.0.Beta1 (master branch), Hibernate Tools has 63 tests (with 2 failures) [3].

Where did all the tests go? This suggests a 90% reduction in test coverage.

[1] https://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_7.0.kepler/job/jbosstools-hibernate_41/
[2] https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/jbosstools-hibernate_4.2.luna/
[3] https://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_Master/job/jbosstools-hibernate_master/