Getting error "xml:java.util.regex.patternsyntaxexception dangling meta character '*' near index 0" while converting EDIFACT to XML

Hi

When i am trying to convert an EDIFACT file into corresponding XML file. I am getting "xml:java.util.regex.patternsyntaxexception dangling meta character '*' near index 0 ". What could be the possible reason for this error. How could be it resolved?

i am using B2B EDI to EDI-XMl test tool for converting an edi file to corresponding xml.

The test converter using for it  :

http://<hostname>:<port>/webdynpro/dispatcher/sap.com/converter~maintain~maintenance-app/Maintenance

Regards,

Rahul