Question

Google turned up nil so here I am.

I’m working on an XSLT in Java. This is not the only XSLT in the project, and the others work great. My issue is as follows:

I’m getting a javax.xml.transform.TransformerException with the error message “Could not find function: exists”. My XSLT is as follows:

<?xml version="1.0"?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
xmlns:xpath="http://www.w3.org/2005/xpath-functions" xmlns:java="java" 
xmlns:url="http://whatever/java/java.net.URLEncoder"
exclude-result-prefixes="url">

    <xsl:template match="User">
        <user>
            <id><xsl:value-of select="id"/></id>
            <xsl:if test="exists(first)"><first><xsl:value-of select="first"/></first></xsl:if>
        </user>
    </xsl:template>

</xsl:stylesheet>

The XML input is well formed, and if I remove the <xsl:if test="exists(first)"> line, everything works well.

As mentioned, I have other XSLTs that work well, including some that use the exists function. I checked the namespaces on the two, and they are identical.

Any idea what might be going on?

Answer 1

i think you can check for the existence of the node just like this

 <xsl:if test="first">