JSP - Problem sending form mail with attachment

I have an online email form which allows users to send an attachment. I have read through the following tutorials but I keep getting errors and I can't get my code to work.

The tutorial I have used are:
http://java.sun.com/developer/onlineTraining/JavaMail/contents.html#JavaMailAttachments
http://java.sun.com/developer/onlineTraining/JavaMail/exercises/MailAttach/solution/AttachExample.java
http://www.jguru.com/faq/view.jsp?EID=30251

The errors I keep getting are:
An error occurred at line: 13 in the jsp file: /submit2.jsp
Generated servlet error:
Duplicate local variable session

An error occurred at line: 13 in the jsp file: /submit2.jsp
Generated servlet error:
The constructor MimeMessage(HttpSession) is undefined

Do I need to create a location on the server for the uploaded file first and then attach to the email OR is it possible for the file to be stored in memory when uploaded? I would prefer the second option if possible.

Can someone please help me out.

<%@page import="java.util.*"%>
<%@page import="javax.mail.*"%>
<%@page import="javax.mail.internet.*"%>
<%@page import="javax.mail.internet.MimeMessage.RecipientType"%>
<%@page import="java.io.*"%>
<%@page import="java.util.Properties"%> 
<%@page import="java.lang.*"%>
<%@page import="javax.naming.*"%>
<%@page import="javax.activation.DataHandler"%>
<%@page import="javax.activation.DataSource"%>
<%@page import="javax.activation.FileDataSource"%>
<%@page import="java.util.Date"%>
<%
  String smtpServer = "mail.myhost.no"; // put here SMTP server address or IP you use for sending email
  request.setCharacterEncoding("UTF-8");
  
  // take the submitted form values from the request
  String toAddress = "me@myemail.no";
  String fromAddress = request.getParameter("epost");
  String hvaSlags = request.getParameter("onatype");
  String gjelder = request.getParameter("message"); 
  String produkt = request.getParameter("produkt");
  String viktighet = request.getParameter("grad");
  String navn = request.getParameter("navn");
  String adresse = request.getParameter("adresse");
  String postnr = request.getParameter("postnr");
  String poststed = request.getParameter("poststed");
  String telefon = request.getParameter("telefon");      
  String fileName = request.getParameter("file1");  //this is the name of the file from the form field
  boolean sessionDebug = false;
  
  // create some properties and get the default Session
  Properties props = new Properties();
  props.put("mail.smtp.host", smtpServer);
  
  try {
  Session session = Session.getInstance(props, null);
  
  //create a message
  MimeMessage message = new MimeMessage(session);  
  InternetAddress from = new InternetAddress(fromAddress);
  message.setFrom(from);  
  InternetAddress to = new InternetAddress(toAddress);
  message.addRecipient(Message.RecipientType.TO, to);  
  message.setSubject("Tilbakemelding");
  
  // create the Multipart
  Multipart multipart = new MimeMultipart();
    
  // create part 1 and fill the first message part
  BodyPart mbpText = new MimeBodyPart();
  mbpText.setText("Melding til Sjøkartverket\n" + 
                  "Hva Slags type melding: " + hvaSlags + 
		  "\nMelding gjelder: " + gjelder + 
		  "\nProdukt: " + produkt + 
		  "\nViktighet: " + viktighet + 
		  "\nNavn: " + navn + 
                  "\nAdresse: " + adresse + 
		  "\nPostnr: " + postnr + 
		  "\nPoststed: " + poststed + 
		  "\nTelefon: " + telefon + 
		  "\nEpost: " + fromAddress); 
  multipart.addBodyPart(mbpText);			  
 		  
  // create part 2, attach file
  mbpText = new MimeBodyPart();  
  DataSource source = new FileDataSource(fileName);
  mbpText.setDataHandler(new DataHandler(source));
  mbpText.setFileName(fileName);
  multipart.addBodyPart(mbpText);
  
  // add the Multipart to the message
  message.setContent(multipart);
  
  // set the Date: header
  message.setSentDate(new Date());
  
  Transport.send(message);
  
  }
  catch (MessagingException mex) {
       // Prints all nested (chained) exceptions as well
	  System.out.println("ERROR SENDING EMAIL:"+ mex);
           mex.printStackTrace();
		 
  }
%>
 
<html>
<p align="center">
  A Message has been sent by submit2.jsp<br>
   Check your inbox.
</p>
 
<p align="center">
   <a href="testmail.html">Click here to send another! - Hallelujah</a>
</p>
</html>

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