A. W. Dunstan wrote:

>         DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

For XPath stuff you should always use a namespace aware factory/document 
builder so make sure you call the method to enable that.

> The XML source (src.xml, above) is:
> 
> <ns2:nuc2 xsi:schemaLocation="nuc2.xsd" xmlns:ns1="Exer_Sets"
>    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns2="nuc2">
>    
>   <ns1:Exer SetSequence="1" SetDescription="Exercise Identification">
>     <ExerciseNickname>pushups</ExerciseNickname>
>     <ExerciseAdditionalIdentifier>whatever</ExerciseAdditionalIdentifier>
>   </ns1:Exer>
> 
> </ns2:nuc2>

So your XML uses namespaces, to cater for that the XSLT stylesheet needs 
to bind prefixes to the namespaces used:
   <xsl:stylesheet
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
     version="1.0"
     xmlns:ns2="nuc2"
     xmlns:ns1="Exer_Sets"
     exclude-result-prefixes="ns1 ns2">
then you need to use those prefixes in your XPath expressions and in 
your XSLT match patterns:

    <xsl:value-of select="/ns2:nuc2/ns1:Exer/ExerciseNickname"/>

You just got lucky with your Java program as you used a not namespace 
aware DOM I think, if you use a namespace aware DOM then you need 
prefixes in your XPath expressions too and need to manage them in your 
Java program too.


-- 

	Martin Honnen
	http://JavaScript.FAQTs.com/