Using Resteasy with javassist?

[immure]

I'm trying to use resteasy to serve out some entities fetched by spring-hibernate.

I've configured one method which returns a POJO and works as expected:

 @GET
 @Path("/test")
 @Produces(MediaType.APPLICATION_XML)
 public Episode getTestEpisode() {
 Episode e = new Episode();
 e.setEpisodename("test");
 return e;
 }

Produces:

 <episode episodeId="0">
 <combinedEpisodenumber>0.0</combinedEpisodenumber>
 <combinedSeason>0</combinedSeason>
 <episodename>test</episodename>
 <episodenumber>0</episodenumber>
 <seasonId>0</seasonId>
 <seasonnumber>0</seasonnumber>
 </episode>

However, if I try and return something from spring/hibernate I get an error:

Could not find MessageBodyWriter for response object of type: com.company.domain.Episode_$$_javassist_27 of media type: application/xml

I imagine this is some magic with javassist, however I think it's confusing JAX-B by not being the expected class. Can I tell JAX-B where to look for the annotations, or can I get a POJO from this object?

Never used javassist directly, so not sure how it works.