xpath use in extension

[Marco Laponder <ml...@interchain.nl>]

Hi,

I am trying to do the following, i define a variable in my xsl file as the following:

<xsl:variable name="var1>
	<info1 value="test" />
	<info2 value="test" />

</xsl:variable>

and I pass thi vaiable to an extension function :

<xsl:copy-of select="myext:getdata2($var1)" />

I defined my function as follows:

public Document getdata2(Object input){
                DTMNodeIterator it = (DTMNodeIterator) input;
               Document inputDoc = (Document) it.getRoot();    

	....
}

When I dump the inputdoc to file, it contains the data from var1 as I expect.

Now I try to get specific data from the input doc with the XPathAPI object, e..g.

	XPathAPI.selectNodeList(inputDoc,"/")

but this gives met the following error 
java.lang.ArrayIndexOutOfBoundsException: -1
        at org.apache.xml.utils.SuballocatedIntVector.elementAt(SuballocatedIntV
ector.java:454)
        at org.apache.xml.dtm.ref.DTMDefaultBase._firstch(DTMDefaultBase.java:52
0)
        at org.apache.xml.dtm.ref.DTMDefaultBase.getFirstChild(DTMDefaultBase.ja
va:965)
        at org.apache.xml.dtm.ref.DTMNodeProxy.getDocumentElement(DTMNodeProxy.j
ava:605)
        at org.apache.xpath.XPathAPI.eval(XPathAPI.java:274)
        at org.apache.xpath.XPathAPI.selectNodeList(XPathAPI.java:211)
        at org.apache.xpath.XPathAPI.selectNodeList(XPathAPI.java:191)
        at interchain.ext.XmlProvider.getdata2(XmlProvider.java:203)       


Can anyone explain to me what I am doing wrong here ? Any alternatives ? 

Kind regards,
Marco Laponder
mlr AT interchain DOT nl