json message body reading

[Benson Margulies]

  Here's a little service.

I get 2011-04-29 10:49:01,630 [http-64809-2] WARN
org.apache.cxf.jaxrs.utils.JAXRSUtils - No message body reader has
been found for request class SystemConfiguration, ContentType :
application/json.

even though I have

src/main/resources/META-INF/services/javax.ws.rs.ext.MessageBodyReader

containing

org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider


  @POST
    @Produces("application/json")
    @Consumes("application/json")
    @Path("/initial-configuration")
    public synchronized Response
initialConfiguration(SystemConfiguration config) {
        if (serviceState.isConfigured()) {
            return alreadyConfiguredError();
        }
        return doInitialConfiguration(config);
    }