This is for BVal-2.0, so 2.0 TCK is enough. We initially just wanted to also run the 1.1 TCK. But that's really optional.

With a few tricks a dependency tweaking I now came a bit further when downgrading to arquillian-1.1.11.Final. Still see weird errors, but could be real ones this time - need to investigate on our side.
So I'll downgrade this ticket. Would still be great if the compatibility issues could be resolved for the future - txs!