XOM API for Processing XML with Java

[Jan <janreimone AT gmail.com>]

Thanks for your answer. The problem is that the xsd file which I want to
query doesn't can be changed. And the root element looks like this:

<schema xmlns="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.example.org/DataTypes";
xmlns:tns="http://www.example.org/DataTypes"; elementFormDefault="qualified">

That means that xmlns="http://www.w3.org/2001/XMLSchema"; has no prefix
specified. And if I query

/xs:schema

I get the following exception:

XPathException: XPath error: XPath expression uses unbound namespace
prefix xs

So is it possible anyhow to query in the right namespace? I mean I can't
modify the xsd file, by adding a prefix to all elements.