Jakarta FileUpload

Here is the sample code I am trying to run from http://www.theserverside.com/tt/articles/article.tss?l=HttpClient_FileUpload but keep getting the errors:

Listing 9-4. UploadFiles.html
<HTML>
  <HEAD>
    <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252"/>
    <TITLE>File Upload Page</TITLE>
  </HEAD>
  <BODY>Upload Files
    <FORM name="filesForm" action="ProcessFileUpload.jsp"
    method="post" enctype="multipart/form-data">
        File 1:<input type="file" name="file1"/><br/>
        File 2:<input type="file" name="file2"/><br/>
        File 3:<input type="file" name="file3"/><br/>
        <input type="submit" name="Submit" value="Upload Files"/>
    </FORM>
  </BODY>
</HTML>
 
 
 
Listing 9-5. ProcessFileUpload.jsp
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ page import="org.apache.commons.fileupload.DiskFileUpload"%>
<%@ page import="org.apache.commons.fileupload.FileItem"%>
<%@ page import="java.util.List"%>
<%@ page import="java.util.Iterator"%>
<%@ page import="java.io.File"%>
html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Process File Upload</title>
</head>
<%
        System.out.println("Content Type ="+request.getContentType());
 
        DiskFileUpload fu = new DiskFileUpload();
        // If file size exceeds, a FileUploadException will be thrown
        fu.setSizeMax(1000000);
 
        List fileItems = fu.parseRequest(request);
        Iterator itr = fileItems.iterator();
 
        while(itr.hasNext()) {
          FileItem fi = (FileItem)itr.next();
 
          //Check if not form field so as to only handle the file inputs
          //else condition handles the submit button input
          if(!fi.isFormField()) {
            System.out.println("\nNAME: "+fi.getName());
            System.out.println("SIZE: "+fi.getSize());
            //System.out.println(fi.getOutputStream().toString());
            File fNew= new File(application.getRealPath("/"), fi.getName());
 
            System.out.println(fNew.getAbsolutePath());
            fi.write(fNew);
          }
          else {
            System.out.println("Field ="+fi.getFieldName());
          }
        }
%>
<body>
Upload Successful!!
</body>
</html>

but I keep getting the following error:

Can someone tell what am I doing wrong. I have commons-fileupload-1.1.jar in my classpath. I even tried someother samples but keeps getting the same error
i.e. parseRequest(request); I really want to upload an xml file only and read it's content from memory in the servlet and do the processing. Any help is appreciated.

Thanks
[ May 22, 2006: Message edited by: Bear Bibeault ]

The org.apache.commons.io package is not part of commons-fileupload-1.1.jar.
[ May 22, 2006: Message edited by: Bear Bibeault ]

Thanks, How can I make sure that uploaded file is xml file. I want to upload only xml files. Is there a way that I can restrict upload of files to certain types. Thanks