Suspect code in org.jboss.as.host.controller.ManagedServerOperationsFactory.mergeBindingGroups(...) --------------------------------------------------------------------------------------------------- Key: AS7-6133 URL: https://issues.jboss.org/browse/AS7-6133 Project: Application Server 7 Issue Type: Bug Components: Domain Management Affects Versions: 7.2.0.Alpha1 Environment: n/a Reporter: Stephen Coy Assignee: Stephen Coy In the following fragment from the subject method: final ModelNode includedGroup = groups.get(ref); if (group == null) { throw MESSAGES.undefinedSocketBindingGroup(ref); } it looks like group should be includedGroup.