JDOM navigator does selects with null namespace

From Dominik Krupp:

here is an even simpler but runnable example.
All three paths have the same Xpath namespace scopes. I still think
there should be zero selected nodes with the "/root" path, but there is one.

My output with JDOM 1.0 and Jaxen 1.1beta10 in classpath:

Element root has namespace URI: http://mynamespace.org/
Size of node set (/root): 1
Size of node set (/my:root): 1
Size of node set (/foreign:root): 0

Program producing that output:

import java.util.List;
import org.jaxen.JaxenException;
import org.jaxen.XPath;
import org.jaxen.jdom.JDOMXPath;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.Namespace;

public class NullNamespaceXpath {

public static void main(String[] args) {
Namespace my = Namespace.getNamespace("my",
"http://mynamespace.org/");
Document doc = new Document();
Element root = new Element("root", my);
doc.setRootElement(root);
try

{ XPath nullNamespacePath = new JDOMXPath("/root"); nullNamespacePath.addNamespace("my", "http://mynamespace.org/"); nullNamespacePath.addNamespace("foreign", "http://foreignnamespace.org/"); XPath myNamespacePath = new JDOMXPath("/my:root"); myNamespacePath.addNamespace("my", "http://mynamespace.org/"); myNamespacePath.addNamespace("foreign", "http://foreignnamespace.org/"); XPath foreignNamespacePath = new JDOMXPath("/foreign:root"); foreignNamespacePath.addNamespace("my", "http://mynamespace.org/"); foreignNamespacePath.addNamespace("foreign", "http://foreignnamespace.org/"); List selectedNodesNullNamespace = nullNamespacePath .selectNodes(doc); List selectedNodesMyNamespace = myNamespacePath.selectNodes(doc); List selectedNodesForeignNamespace = foreignNamespacePath .selectNodes(doc); System.out.println("Element root has namespace URI: " + root.getNamespaceURI()); System.out.println("Size of node set (/root): " + selectedNodesNullNamespace.size()); System.out.println("Size of node set (/my:root): " + selectedNodesMyNamespace.size()); System.out.println("Size of node set (/foreign:root): " + selectedNodesForeignNamespace.size()); }

catch (JaxenException e)

{ e.printStackTrace(); }

}

}