DO NOT REPLY [Bug 24672] New: - Possible bug in Node.lookupPrefix(...)

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=24672

Possible bug in Node.lookupPrefix(...) 

           Summary: Possible bug in Node.lookupPrefix(...)
           Product: Xerces2-J
           Version: 2.5.0
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: DOM
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


Node.lookupPrefix(namespaceURI) is supposed to look up the prefix associated to 
the given namespace URI, starting from this node[1].  However lookupPrefix 
invoked on newly created element or attribute nodes appears to return null.  
See the test below

Test.java
=========
import java.io.ByteArrayInputStream;
import org.w3c.dom.*;
import javax.xml.parsers.*;

public class Test {

        public void testLookupPrefix()  {
                String data = "<?xml version=\"1.0\"?> "
                + "<!DOCTYPE root ["
                + "   <!ELEMENT root (#PCDATA)>"
                + "   <!ENTITY  ent 'blah'>"
                + "]>"
                + "<root>&ent;</root>";
                
                Document doc;
                Node replaced;
                
                try {
                        DocumentBuilderFactory dbf = 
DocumentBuilderFactory.newInstance ();
                        DocumentBuilder db = dbf.newDocumentBuilder();
                        
                        doc = db.parse(new ByteArrayInputStream(data.getBytes
()));
                        
                    Element elem = doc.createElementNS
("http://www.w3.org/DOM";, "dom3:Text");
                    String  prefix = elem.lookupPrefix
("http://www.w3.org/DOM/Test";);
                        System.out.println("EXPECTED OUTPUT: dom3,   ACTUAL 
OUTPUT: " + prefix);
                                            
                    Attr attr = doc.createAttributeNS
("http://www.w3.org/DOM/Test";, "dom3:parent");
                    elem.setAttributeNodeNS(attr);
                    prefix = attr.lookupPrefix("http://www.w3.org/DOM/Test";);
                        System.out.println("EXPECTED OUTPUT: dom3,   ACTUAL 
OUTPUT: " + prefix);
                } catch (Exception e ) {
                        System.err.println ("Exception: " + e.getMessage());
                        e.printStackTrace();
                }                         
        }   
                
        public static void main(String[] args) {
                Test test = new Test();
                test.testLookupPrefix();
        }
}


http://www.w3.org/TR/2003/CR-DOM-Level-3-Core-20031107/core.html#Node3-
lookupNamespacePrefix

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