Xerces 2.4 / namespace error

[edwinek]

While trying to migrate an application from Websphere 3.5 to Websphere
5, I encountered a weird problem. When reading an XML file into a
DOMResult object, I get 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.xml.utils.DOMBuilder.startElement(DOMBuilder.java:354)
at org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1042)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
Source)
....

The source:

import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;

import org.apache.tools.ant.filters.*;
import org.apache.xerces.impl.*;
import org.w3c.dom.*;

....

Version version = new Version();
System.out.println("Version: "+version.getVersion());
DOMResult domResult = new DOMResult();
try {
Transformer identityTransformer =
TransformerFactory.newInstance().newTransformer();
String xml =
"<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>"
+ "<validation:config xmlns:validation=\"http://domain.nl\">"
+ " <validation:resourceManager attr=\"someattr\>"
+ "</validation:config>";

InputStream inputStream = new StringInputStream(xml);
identityTransformer.transform(new StreamSource(inputStream),
domResult);
} catch (Exception e) {
e.printStackTrace();
}

This doesn't happen using 1.x versions of Xalan and Xerces, but does
with the IBM versions and the latest versions from Apache. So it seems
to be a version 1/version 2 issue. Any ideas on how to solve this
problem?

Regards,
Edwin