createElementNS() does not work as expected in new versions of Xerces (> 2.0.1)

[Thomas Börkel]

HI!

We used createElementNS() in 2.0.1 successfully. Since we switched to newer 
versions (now 2.4.0), it stopped working as expected. We have reviewed our code 
and changed it as suggested in 
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=7687 with no positive effect.

Using 2.0.1, the test code below produces:
<root><testNode xmlns="http://schemas.p2plus.com/test/"/></root>
<root><testNode xmlns="http://schemas.p2plus.com/test/"/></root>

Using 2.4.0, the test code below produces:
<root><testNode/></root>
<root><testNode xmlns=""/></root>

Any help would be greatly appreciated. Thanks!

Regards,
Thomas


Test code:
----------

import java.io.*;
import javax.xml.parsers.*;
import org.apache.xml.serialize.*;
import org.w3c.dom.*;
import org.xml.sax.*;

public class NamespaceTest {
  
  public static void main(String[] args) throws Exception {
    Document doc;
    Element root, tag;
    Attr attr;
    String namespaceURI = "http://schemas.p2plus.com/test/";;
    String tagName = "testNode";
    
    doc = getDocument("<root />");
    root = doc.getDocumentElement();
    tag = doc.createElementNS(namespaceURI, tagName);  
    root.appendChild(tag);
    System.out.println(docToString(doc));
    
    doc = getDocument("<root />");
    root = doc.getDocumentElement();
    tag = doc.createElementNS(namespaceURI, tagName);  
    attr = doc.createAttributeNS("http://www.w3.org/2000/xmlns/";, "xmlns");
    tag.setAttributeNodeNS(attr);
    root.appendChild(tag);
    System.out.println(docToString(doc));
  }
  
  public static Document getDocument(String xml) throws Exception {
    DocumentBuilderFactory dbf;
    DocumentBuilder db;
    Document doc;
    
    dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    dbf.setValidating(true); 
    dbf.setAttribute("http://apache.org/xml/features/validation/dynamic";,
                    new Boolean(true));
    dbf.setAttribute("http://apache.org/xml/features/validation/schema";, 
                     new Boolean(true));
    db = dbf.newDocumentBuilder();
    doc = db.parse(new InputSource(new StringReader(xml)));
    return(doc);
  }
  
  public static String docToString(Document doc) throws Exception {
    OutputFormat outputFormat;
    XMLSerializer xmlSerializer;
    StringWriter sw;
    
    try {
      sw = new StringWriter();
      outputFormat = new OutputFormat();
      outputFormat.setOmitXMLDeclaration(true);
      outputFormat.setEncoding("utf-16");
      outputFormat.setPreserveSpace(true);
      xmlSerializer = new XMLSerializer(sw, outputFormat);
      xmlSerializer = new XMLSerializer(sw, outputFormat);
      xmlSerializer.serialize(doc);
      return(sw.toString());
    } catch (IOException ioe) {
      return(ioe.getMessage());
    }
  }
}

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