XMLReader / SAXParser.getReader() ??

[Kristof Camelbeke]

I've been messing around with the following code and something strange happens...

  
                InputSource is = new InputSource(new FileReader(inputFile));
                XMLReader reader = XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
                //XMLReader reader = sp.getXMLReader();
                SaxErrorCollector collector = new SaxErrorCollector();
                reader.setErrorHandler(collector);
                //              schema validation features 
                reader.setFeature("http://xml.org/sax/features/validation", true);
                reader.setFeature("http://apache.org/xml/features/validation/schema", true);
                //SaxValidator.validateXml(inputFile);
                reader.parse(is);
                System.out.println(sp.getParser());   

when I use the XMLReader instance created by the XMLReaderFactory the validation works fine but when I create an XMLReader instance from the SAXParser.getReader() then it will not do any validation because it can't find for some reason the XSD schema definition file...

How can this be possible, an XMLReader is a XMLReader isn't it ? They both use the Xerces as the implementation so I can't see why in one situation it works and in the other it won't... Or am I missing something ?

Kristof