2 identical named mdbs cannot deploy

SourceForge Submitter: charris .
Two MDBs, both with the same ejb-name but *in different
ejb-jars*, both produce MBeans with ObjectName

jboss.j2ee:jndiName=local/MyMDBEJBName,service=EJB

meaning that the second MDB will not deploy properly
since the MBeanServer returns
InstanceAlreadyExistsException. The ObjectNames are
formed with the prefix "/local" to produce a dummy jndi
name, but need to be more unique than this to avoid the
clash.