When executing webservices using AXIS, you can receive following error due to invalid elements.
{http://xml.apache.org/axis/}stackTrace:org.xml.sax.SAXException: Invalid
element in com.mobitel.axis.AdjustmentResult -
AdjustmentSerialNo
You can edit XSD file for this WSDL and add AdjustmentSerialNo element to AdjustmentResult element to resolve this. You have to download XSD files and generate webservice clients.