This is about including the cxf-services-ws-discovery-api component in the application server and verifying endpoints are properly registered for WS-Discovery probing during deployment.
We need an alternative approach for enabling WS-Discovery for a user deployment (as the classpath based approach [1] does not fit the AS server side), e.g. a property to be specified in jboss-webservices.xml descriptor.

[1] http://cxf.apache.org/docs/ws-discovery.html