Webservice: Custom Java Objects -> Response is empty

Hi there,

I am trying to create a Web Service with a custom return type in NW JEE 5 using annotations.

Simple types e.g. String or int work fine.

When I try to call the WS the response value is empty.

Do need to define some JAXB in my custom java class? Until now I just implemented Serializable...

thanks

jc