From Martin Weiler :
Just one minor remark. When you deploy a new service for the first time, the following ERROR is thrown from the registry:
ERROR [JAXRRegistryImpl] org.jboss.soa.esb.services.registry.ServiceNotFoundException: Could not find service with category=FirstServiceESB and serviceName=SimpleListener
I think the ServiceNotFoundException could be logged at DEBUG level (if at all) after findEPRs, as it is expected on first deployment.