Thomas, Yes, we ship Hibernate 4.0.1 currently (might upgrade to 4.1.1). Supporting multiple persistence provider modules allows applications to work with the provider of their choosing without having to bundle the jars with each deployment. I don't see the actual failure in JBOSGI-260. Do you have server.log output that goes with the failure? I don't expect that it would help but have you integrated the AS 7.1.1 changes into your branch? I fixed a few javax.persistence.Persistence issues (for applications that bootstrap via javax.persistence.Persistence and include their own provider jars). Scott