Java EE (Java Enterprise Edition) General Discussion

Hi, I was trying to write a DOM based parser to validate an XML file. But it was showing no errors/ exceptions though there was errors in my XML file. I extended the DefaultHandler class and overrided the error, fatalError and warning methods. Please help me out. Here's my code:

import java.io.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.*;
import org.xml.sax.helpers.DefaultHandler;

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

public class DOMCue2 extends DefaultHandler
{
    static Document document;
    
    public static void main(String[] args)
    {
       try
	   {
	   		DocumentBuilderFactory dbFactory=DocumentBuilderFactory.newInstance();
	   		dbFactory.setValidating(true);
	   		dbFactory.setIgnoringElementContentWhitespace(true);

	   		DocumentBuilder db=dbFactory.newDocumentBuilder();
	   	    db.setErrorHandler(new DefaultHandler());
	   	    System.out.println("Trace output- 1");
	   	    document=db.parse(new File("book-order.xml"));
	   	    System.out.println("Trace output- 2");

	   }
	   catch(Exception e)
	   {
	   		System.out.println(e);
	   }
    }

    public void error(SAXParseException e) throws SAXException
    {
		e.printStackTrace();
		System.out.println(e.getMessage()+" : "+e.getLineNumber());
	}

	public void fatalError(SAXParseException e) throws SAXException
	{
		e.printStackTrace();
		System.out.println(e.getMessage()+" : "+e.getLineNumber());
	}

	public void warning(SAXParseException e) throws SAXException
	{
		e.printStackTrace();
		System.out.println(e.getMessage()+" : "+e.getLineNumber());
	}
}