During deployment of the endpoints declared in my wars a call is made to AbstractServerConfig.getConnectorPort(). This fetches the WS Server MBean and tries to lookup objects of type "jboss.web:type=Connector,*". At the point where the lookup fails the jboss.web MBean has only one entry for the WebServer.

In the run that I managed to debug the type=Connector entries were added at a later point. So, some of the subsequent calls to getConnectorPort() succeeded and also the AS bootstrap did not hang. I was unable to debug a case where the bootstrap did hang.