JAX-RS: Auto-discovery of root resources

Hi all,
as reported by [1], with 3.0.0-milestone2 it is possible to enable
JAX-RS services auto-discovery by setting:

<jaxrs:server address="/customers" basePackages="a.b.c"/>

First question: are packages in 'basePackages' to be considered subtree
roots or leaf nodes? I.e. can classes to be auto-discovered be placed,
say, in a.b.c.d?

Moreover, I've been playing a bit with such feature, but found that only
concrete classes (not interfaces) annotated with @Path are actually
recognized: is this correct?

Does this mean that there is no way to let the auto-discovery mechanism
deal with a situation where an annotated service interface is defined -
for shared usage with client code - and a concrete non-annotated class
implementing that interface are provided?

Say, for example:

@Path("/")
@Produces(MediaType.APPLICATION_ATOM_XML)
public interface Core {
...

then, in a different package:

public class CoreImpl implements Core {
...

TIA
Regards.

[1]
https://cxf.apache.org/docs/jaxrs-services-configuration.html#JAXRSServicesConfiguration-Auto-discoveryofrootresourcesandproviders

Tirasa - Open Source Excellence
http://www.tirasa.net/

Involved at The Apache Software Foundation:
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