While removing the cyclical dependency of ejb3-core to org.jbossjbossas:jboss-as-iiop, the default ORB name defined in:
org.jboss.iiop.CorbaORBService.ORB_NAME = ""JBossCorbaORB"
It is now hardcoded in org.jboss.ejb3.EJBContainer.
The correct approach would make it configurable in EJB3, somehow.