Description
DOMImplementationProvider contains the following code:
domImpl = (DOMImplementation)
Class.forName("org.apache.xerces.internal.dom.DOMImplementationImpl").
getMethod("getDOMImplementation").invoke(null);
The actual class name should be org.apache.xerces.dom.DOMImplementationImpl (no "internal")
http://xerces.apache.org/xerces-j/apiDocs/org/apache/xerces/dom/DOMImplementationImpl.html