使用JAX-WS时如何使用自己的自定义客户端类？

I'm using JAX-WS as a client and am generating classes from it. The problem with the generated classes is that they are simple pojos without any convenience methods. Is there a way I can use my own custom classes that I've written myself, instead? They would have the same fields and name as the generated classes would, but they would allow me to create my own convenience methods. I'm using JAX-WS as a client and am generating