Problem
While calling the webservice , getting the following error
The exception which was received is java.io.IOException: javax.xml.soap.SOAPException: org.xml.sax.SAXParseException: An invalid XML character (Unicode: 0x45) was found in the prolog of the document.
Cause
Problem with parsing the character in response xml because of difference in UTF encoding (UTF-8 or UTF-16). If it's on WAS 6 then it shows this as wrong message in case the service is not called properly.
http://www-01.ibm.com/support/docview.wss?uid=swg1PK30932
Resolution
Check if there is any incompatibility with the UTF encoding defined in stubs , request and response.
If the problem is on WAS 6 , check whether the service is getting called properly or not.