Never tried doing it but if it's not passing along some session attribute, I can't see how it could attach stateless requests to a particular batch? Perhaps there is a way...
I did find that batching is implemented with composite commands. Translating the yaml format to json following the composite command format found at https://community.jboss.org/wiki/FormatOfADetypedOperationRequest is letting me execute multiple commands as an atomic unit.
Kudos to the Redhat engineers for the modular design and detyped management api. Those features combined with puppet/chef make for an outstanding application platform.