JAXP TrAX: How to propogate SAXExceptions?

I have a system doing the following:
SAX Pipe(input) -> SAXSource -> Xalan -> SAXResult -> SAX Pipe(output)

If I get an exception in the SAX Pipe(output), I want to pass a SAXException
back down the program stack. Xalan currently swallows my SAXExceptions. Does
anyone know of a feature that I can set so that Xalan will report output
errors to an ErrorHandler?

My version of Xalan-J (2.2D6) seems to have commented out much of the error
handling code.

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list