Thanks for replies.
There are severals xsd files and a wsdl file, not only one xsd file like I said in previous post. All of them are interconnected. I managed to generate java classes using wsdl2java from axis2. Know I have a lot of java classes for xml data and a skeleton, a skeleton interface, a MessageReceiverInOut and a stub. I suppose the stub send the xml data over http with soap headers and skeleton is the receiver. Know I must implement bussiness logic in skeleton and stub I think.