Title: Enable EJB 2.x Container-Managed Persistence To enable the cmp subsystem the related configuration is needed <profile> ... <subsystem xmlns="urn:jboss:domain:cmp:1.1"/> In domain mode the extension can only removed if there is no profile which contains the cmp subsystem. Also in domain mode the extension exists by default but only the *-full* profiles contains the subsystem. Same issue in EAP6.0 16.9.3 chapter
Verified in 6.4.0-6