How to get line number of XSL file when XALAN throws exception

[Koti]

I wrote a JAVA application (JSDK 1.4.0) to transform the XML file into text
file using Xalan XSLT engine.

I am getting few exceptions:
"Error: javax.xml.transform.TransformerException: Unknown error in XPath"

I would like to know the line number in XSL file and XML where this
exception occurs.

Is there any possiblity.

Thanks,
-Koti