String endPoint = <url_du_Webservice>;
Service service = new Service();
Call call =(Call)service.createCall();
call.setTargetEndpointAddress(endPoint);
        
call.setOperationName(new javax.xml.namespace.QName(endPoint,<methode_du_WS_a_appeler>));
Object rep = (Object)call.invoke(new Object[]{<arg1>, <arg2>});