jaxrs question

[Scott Lewis]

I'm programmatically using cxf in an osgi environment.  I'm using the 
servlet class: org.apache.cxf.jaxrs.servlet.CXFNonSpringJaxrsServlet, 
and want to create and an impl of javax.ws.rs.core.Configurable to 
register extensions (e.g. json support, etc).

Is there a cxf jaxrs impl of javax.ws.rs.core.Configurable in that I can 
create programmatically, and use to register extensions like 
ContextResolver, etc?

Thanksinadvance,

Scott