SOAP-Client in Oracle DB

Hello

Did someone now if I can load a SOAP-Client into an Oracle DataBase.
Because I can have JavaStoredProcedures in the DataBase. I hava already
try to load:

soap.jar
xerces.jar
mail.jar
activation.jar

in to the DataBase, but if I try to compile a SOAP-Client Programm, i
got the error:
> Class Call not found

I now there is a SOAP for iAS9i but i want the client i the DataBase.

Can someone help me how to load a client in the DataBase?

Thanks and best regards

Maik Kündig