Thanks, but yes, the stacktrace is the same. I'm pretty sure that it's caused by an Adapter like this:
public class WSCountryAdapter extends XmlAdapter<WSCountryImpl, WSCountry>
public WSCountryImpl marshal(WSCountry v) throws Exception
if (v instanceof WSCountryImpl)
return (WSCountryImpl) v;
return new WSCountryImpl();
public WSCountry unmarshal(WSCountryImpl v) throws Exception
Where WSCountry is the interface and WSCountryImpl the implementation class.