Re: 'prefixed' node names without namespace awareness causes problems with ToXMLSAXHandler

I found next problem similar to the above. 


Tuomas Kiviaho wrote:
>  
> 		Result result = new DOMResult();
> 		ClassLoader classLoader = Thread.currentThread()
> 				.getContextClassLoader();
> 		TransformerFactory transformerFactory = TransformerFactory.newInstance(
> 				"org.apache.xalan.processor.TransformerFactoryImpl",
> 				classLoader);
> 		Transformer transformer = transformerFactory.newTransformer();
> 		transformer.transform(source, result);	
> 

When DOMResult instead of SAXResult (this time with identity transformer)
I'm encountering the following error.  

org.w3c.dom.DOMException: NAMESPACE_ERR: An attempt is made to create or
change an object in a way which is incorrect with regard to namespaces.
	at org.apache.xerces.dom.ElementNSImpl.setName(Unknown Source)
	at org.apache.xerces.dom.ElementNSImpl.<init>(Unknown Source)
	at org.apache.xerces.dom.CoreDocumentImpl.createElementNS(Unknown Source)
	at org.apache.xml.utils.DOMBuilder.startElement(DOMBuilder.java:328)
	at
org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1073)

DOMBuilder.startElement states the following where the error occured. 

// Note that the namespace-aware call must be used to correctly
// construct a Level 2 DOM, even for non-namespaced nodes.
if ((null == ns) || (ns.length() == 0))
  elem = m_doc.createElementNS(null,name);
else
  elem = m_doc.createElementNS(ns, name);

Document.createElementNS javadoc states that parsing is attempted for qname
which leads to the error. 
I discovered the following from Xerces implementation which would solve this
issue.

boolean domLevel20 =
source.getOwnerDocument().getImplementation().hasFeature("XML", "2.0");
// Create element according to namespace support/qualification.
if(domLevel20 == false || source.getLocalName() == null)
  newElement = createElement(source.getNodeName());
else
  newElement = createElementNS(source.getNamespaceURI(),
source.getNodeName());
-- 
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