Netbeans WVP/Tomcat, "faces-config", must match DOCTYPE root "null"

Question

With Netbeans 5.5 I suddenly (worked yesterday) get an error when
starting Tomcat 5.5.17:
org.apache.commons.digester.Digester - Parse Error at line 9 column 116: Document root element "faces-config", must match DOCTYPE root "null".
org.xml.sax.SAXParseException: Document root element "faces-config", must match DOCTYPE root "null".
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236)
The XML parser is complaining about a corrupt schema reference in faces-config.xml inside of web-ui.jar.
First attempt at a solution: uninstalled WVP and re-installed, hoping for a jar with a valid xml file--no such luck, it's corrupt on install.
Worst, it looks like JSF 1.2 stuff that's being called--my project is imported from JSC 2 and, presumably, should be using JSF 1.1.
Second attempt at a solution: download latest JSF1.1 files and copy into netbeans module/ext and project's WEB-INF/lib.
No luck, same error.

Answer 1

The following piece of code should work:
     public static final String JAXP_SCHEMA_LANGUAGE="http://java.sun.com/xml/jaxp/properties/schemaLanguage";
     public static final String W3C_XML_SCHEMA="http://www.w3.org/2001/XMLSchema";
     public static final String SCHEMA_SOURCE_XSD = "C:/eclipse/workspace/XSDValidation/config/Providers-def.xsd";
     public static final String JAXP_SCHEMA_SOURCE ="http://java.sun.com/xml/jaxp/properties/schemaSource";
                    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
               factory.setNamespaceAware(true);
               factory.setValidating(true);     
               try
                    factory.setAttribute(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
                    factory.setAttribute(JAXP_SCHEMA_SOURCE ,new File(SCHEMA_SOURCE_XSD));
/*                    factory.setAttribute(VALID_SCHEM ,Boolean.valueOf(true));
                    factory.setAttribute(VALID_SCHEM_FULL ,Boolean.valueOf(true));
               catch (IllegalArgumentException x)
                    // Happens if the parser does not support JAXP 1.2
                    System.err.println("Could not register the providers as the underlying parser" +
                              "does not support JAXP 1.2");
               // get the xml document builder
               DocumentBuilder builder = factory.newDocumentBuilder();
               Validator handler = new Validator();
               builder.setErrorHandler(handler);                    
     private class Validator extends DefaultHandler
          public boolean validationError = false;
          public SAXParseException saxParseException = null;
          public void error(SAXParseException exception)
          throws SAXException{
          validationError = true;
          saxParseException = exception;     
          throw new SAXException("failed validation");
          public void fatalError(SAXParseException exception)
          throws SAXException {
          validationError = true;     
          saxParseException=exception;     
          public void warning(SAXParseException exception)
          throws SAXException { }     
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