getAssociatedStylesheets failed

I'm doing a tutorial on Dev Shed on the basics of Transformation. All of the examples in the tutorial worked except for the last one that uses a JSP page to transform a stylesheet. I'm using Tomcat 4.0.6 that comes with net beans.
The error that I'm getting is:
javax.xml.transform.TransformerConfigurationException: getAssociatedStylesheets failed
The JSP page is supposed to get the location of the XSL Transformation stylesheet from the XML file on a line like....
<?xml-stylesheet type="text/xsl" href="./addresses.xsl"?>
in the XML file.
I don't understand what is causing it, except that maybe the directory it is searching for the xsl file is not the right one? I don't know. I've tried absolute paths and everything.
Anyway here are the files, the class is contained in /mywebapp/WEB-INF/Classes and the JSP is contained in the same directory as the XML and XSL files.

The XML file....
-------------------------------------------------------

The XSL file
----------------------------------

The JSP File
--------------------------------------

And last but not least...The Class file from WEB-INF/classes

/*
 * addressBookHTMLConverter.java
 *
 * Created on November 11, 2003, 10:11 PM
 */
package XMLDemo;
import org.xml.sax.SAXException;
import javax.xml.transform.*;
import javax.xml.transform.stream.*;
import java.io.*;
public class addressBookHTMLConverter {
    // store the names of the files
    public static String xmlFile = "";
    
    // a Writer object to communicate with JSP
    private Writer out;
    
    // parameters for the getAssociatedStylesheet() method of the 
    // TransformerFactory class
    // Set them to null as they are not essential here
    String media = null, title = null, charset = null;
    
    // constructor
    public addressBookHTMLConverter(String xmlFile, Writer out)
      throws SAXException
    {
     try {
      this.out = out;
      
      // Create an instance of the TransformerFactory
      TransformerFactory tFactory = TransformerFactory.newInstance();
      
      // get the name of the stylesheet that has been defined
      // in the XML file.
      // create a souce object for use by the upcoming newTransformer() method
      Source stylesheet = tFactory.getAssociatedStylesheet
         (new StreamSource(xmlFile), media, title, charset);
      
      
      // create a transformer which takes the name of the stylesheet
      // from the XML document.
      Transformer transformer = tFactory.newTransformer(stylesheet);
      
      transformer.transform(new StreamSource(xmlFile), new StreamResult(out));
      
      out.flush();
      
     }catch(TransformerException e)
     {
      throw new SAXException(e);
     }
      catch(IOException e)
     {
      throw new SAXException(e);   
     }
    }
    
}

Thanks in advance,