The current 6.2.0 SNAPSHOTS of the jcr2vfs tool are broken. There seems to some issue with incompatibility with between Drools 5.x and 6.x.
Asset [Bankruptcy history] with format [brl] is being migrated...
java.lang.ClassCastException: org.drools.core.base.accumulators.BigDecimalSumAccumulateFunction cannot be cast to org.drools.runtime.rule.AccumulateFunction
Another very serious issue is that even when the jcr2vfs tests fail, the Jenkins drools-wb CI build succeeds. This needs to be fixed, so that when the tests fail, the build fails too.
I will try to fix the tool in time for 6.2.0.Final.