reuse classes from webservice in client

Hello,

I have a simple webservice
@WebService
class MyService : IMyService
{
@WebMethod
public MyBean getMyBean()
{
...
}
}

The class MyBean and the IMyService interface is in a package that is used also from the client.
How can I generate my client, that it uses the MyBean class from the package and does not generate a new version?

thanks!
Dirk