Base class members not serializing / deserializing

[Brad O'Hearne]

Hello,

I am using CXF with RESTful services, configured with Spring. My  
request objects (parameters to my service methods) and response  
objects (return types on my service methods) have a common structure,  
so I created some base classes with common members, which the actual  
request and response objects I use and declare as types in my service  
interface method signatures, and have discovered something  
horrible...which I hope is something only as horrible as my lack of  
knowledge on how to change the default behavior. Apparently, all  
members defined on the base classes are ignored when the  
serialization / deserialization binding occurs, and I receive  
NullPointerExceptions. If I take all the members defined in my base  
classes and stuff them into their subclasses, everything works fine.  
Obviously, this is a bad scene, as it requires me to duplicate code  
across every request and response object, respectively.

How do I alter the CXF behavior (using JAXB) so that I can have my  
request and response types extend from base classes and have those  
base class members serialize and deserialize properly?

Thanks,

Brad