A RemoteCache using a near cache throws javax.management.InstanceAlreadyExistsException on restart. RemoteCache w/out a near cache restarts without issue.
This is because InvalidatedNearRemoteCache.stop() does not call the super implementation, which unregisters its mbeans.
This issue technically affects older versions, but the allowDuplicateDomains logic circumvents the InstanceAlreadyExistsException problem.