DO NOT REPLY [Bug 4336] - Xalan 2.2.D11 adds a strange Attribute

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=4336

Xalan 2.2.D11 adds a strange Attribute





------- Additional Comments From [EMAIL PROTECTED]  2001-11-15 
11:31 -------
Dear Joe,

I have the following problem. The XPath catches the xmlns:xml attribute which 
has been added for resolving the xml namespace. When I try to get the owner 
document of the node, I get an exception:

/*
Apache Xerces Xerces 1.4.3
Apache Xalan  Xalan Java 2.2.D11
0 DOCUMENT [#document: null]
1 COMMENT [#comment:  full document with decl ]
2 ELEMENT [doc: null]
3 ATTRIBUTE 
org.apache.xml.dtm.ref.dom2dtm.DOM2DTM$defaultNamespaceDeclarationNode@2effdf
3 xmlns:xml http://www.w3.org/XML/1998/namespace
3 specified false
java.lang.NullPointerException
        at 
org.apache.xml.dtm.ref.dom2dtm.DOM2DTM$defaultNamespaceDeclarationNode.getOwnerD
ocument(DOM2DTM.java:1722)
        at org.apache.xml.security.temp.XalanBug4336.main(XalanBug4336.java:120)
Exception in thread "main"
*/

import java.io.*;
import org.w3c.dom.*;
import javax.xml.parsers.*;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import org.xml.sax.SAXException;
import org.apache.xpath.XPathAPI;

/**
 * Xalan Bug 4336
 *
 * @author $Author: geuerp $
 * @version $Revision: 1.4 $
 * @see http://nagoya.apache.org/bugzilla/show_bug.cgi?id=4336
 */
public class XalanBug4336 {
   static final String _nodeSetInput1 = "<?xml version=\"1.0\"?>\n"
                                        + "<!DOCTYPE doc [\n"
                                        + "<!ELEMENT doc (n+)>\n"
                                        + "<!ELEMENT n (#PCDATA)>\n" + "]>\n"
                                        + "<!-- full document with decl -->"
                                        + "<doc><n>1</n></doc>";

   public static void main(String unused[]) throws Exception {

      System.out.println("Apache Xerces "
                         + org.apache.xerces.framework.Version.fVersion);
      System.out
         .println("Apache Xalan  "
                  + org.apache.xalan.processor.XSLProcessorVersion.S_VERSION);

      DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance();

      dfactory.setValidating(false);
      dfactory.setNamespaceAware(true);

      DocumentBuilder db = dfactory.newDocumentBuilder();
      Document document =
         db.parse(new ByteArrayInputStream(_nodeSetInput1.getBytes()));
      NodeList nl = XPathAPI.selectNodeList(document,
                                            "(.//. | .//@* | .//namespace::*)");

      for (int i = 0; i < nl.getLength(); i++) {
         System.out.println(i + " " + getNodeTypeString(nl.item(i)) + " "
                            + nl.item(i));

         if (nl.item(i).getNodeType() == Node.ATTRIBUTE_NODE) {
            Attr a = (Attr) nl.item(i);

            System.out.println(i + " " + a.getNodeName() + " "
                               + a.getNodeValue());
            System.out.println(i + " specified " + a.getSpecified());
            System.out.println(i + " owner document: " + a.getOwnerDocument());
         }
      }
   }

   static String[] nodeTypeString = new String[]{ "", "ELEMENT", "ATTRIBUTE",
                                                  "TEXT_NODE", "CDATA_SECTION",
                                                  "ENTITY_REFERENCE", "ENTITY",
                                                  "PROCESSING_INSTRUCTION",
                                                  "COMMENT", "DOCUMENT",
                                                  "DOCUMENT_TYPE",
                                                  "DOCUMENT_FRAGMENT",
                                                  "NOTATION" };

   public static String getNodeTypeString(short nodeType) {

      if ((nodeType > 0) && (nodeType < 13)) {
         return nodeTypeString[nodeType];
      } else {
         return "";
      }
   }

   public static String getNodeTypeString(Node n) {
      return getNodeTypeString(n.getNodeType());
   }
}