TypeMappingRegistry is empty

[Andrew Prunicki]

Please excuse this message if it is too obvious, as I am a relative 
newbie to Axis.

I am trying to leverage the built-in xml to object unmarshalling within 
a running web-service in Axis.  From what I can gather, the best way 
would be to create a DeserializationContext, and use the already defined 
TypeMappings of the current service.  Now I can get the service's 
typemappingregistry, but it is always empty.  Is there a better way to 
do this?  Here is the code I have been playing with to get at the mapping:

       MessageContext context = MessageContext.getCurrentContext();
       AxisEngine engine = context.getAxisEngine();
       MessageContext msgContext = new MessageContext(engine);
       SOAPService service = engine.getService("MathService");
       TypeMappingRegistry tmr = engine.getTypeMappingRegistry();
       msgContext.setTypeMappingRegistry(tmr);
      
       String[] resu = tmr.getRegisteredEncodingStyleURIs();
       System.out.println("RegisteredEncodingStyleURI count: " + 
resu.length);
       for (int i = 0; i < resu.length; i++) {
           System.out.println("RegisteredEncodingStyleURI: " + resu[i]);
       }

This always returns a count of 0, regardless of where I get the 
TypeMappingRegistry.

Any help would be appreciated.