Ah no, I was wrong. The test cases are too mangled up to properly engage the feature.
I'm fixing jboss-test to deploy the destinations properly.
We had changed some of the APIs. I thought I didn't need to change jboss-test, but there is a small tweak I needed to do and what caused a few tests to fail.
I've deployed a new jboss-test tonight. I will upgrade jboss-test on jboss-as/trunk as soon as it appears on the repository.