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Referencing external XSLT libraries in Java 1.7

3026380 Member Posts: 1
edited Jan 24, 2016 2:34PM in Java Enterprise Edition

An oracle jdk 1.7 project uses XSL transformation, and in it, some functions. So the namespace is included in the xsl file like this:

xmlns:date="" version="1.0"

Then, the XSL is trying to use one of them exsl functions like this:

<xsl:variable name="convDt">

    <xsl:value-of select="date:add(concat(substring($tmpDate,1,10),'T',substring($tmpDate,12,8)), 'PT2H')"/>


When we run xsltproc on input xml and this xsl , it works fine. But we have written JAXP module, for this transformation running on JDK 1.7.

javax.xml.transform.TransformerFactory transFact = javax.xml.transform.TransformerFactory


        javax.xml.transform.Transformer trans = transFact



        trans.transform(xmlSource, result);

From the logs, we see it just does not work

XML-22015: (Error) Function 'add' not found.

I wodner what will be the correct namespace? Are these libraries stored somewhere and these namespaces serve as keys for some mappings anyway?