From class to webservice..

Hello everybody!

I have implemented a class that works 100%. The inputs and outputs are all serializable. But when I try to create (in Eclipse Helios) and test a webservice from it, I get the following :

IWAB0398E Error in generating WSDL from Java: java.lang.ClassCastException: org.apache.axis.encoding.ser.BeanSerializer cannot be cast to org.apache.axis.encoding.Serializer
java.lang.ClassCastException: org.apache.axis.encoding.ser.BeanSerializer cannot be cast to org.apache.axis.encoding.Serializer




Can anybody tell me how may I solve this?

Thanks !