I'm trying out JavaMail for the 1st time, and
I'm using the "Multipart" example code
(msgmultisendsample.java) but when I finish
compiling it and run it, I get the following
error:
No ClassDefFoundError: com/sun/mail/util/SharedByteArrayInputStream

Do I need to find this class and where can I find it???

Here's the sample code:

			

			

			import java.util.*;
			

			import java.io.*;
			

			import javax.mail.*;
			

			import javax.mail.internet.*;
			

			import javax.activation.*;
			

			

			/**
			

			* msgmultisendsample creates a simple multipart/mixed message and sends it.
			

			* Both body parts are text/plain.
			

			*
			

				

				* usage:
				
					java msgmultisendsample
					to from smtp true|false
				
				

				* where
				to
				and
				from
				are the destination and
				

				* origin email addresses, respectively, and
				smtp
				

				* is the hostname of the machine that has smtp server
				

				* running.  The last parameter either turns on or turns off
				

				* debugging during sending.
				

				*
				

				* @author Max Spivak
				

				*/
				

				public class msgmultisendsample {
				

				static String msgText1 = "This is a message body.
				

				Here's line two.";
				

				static String msgText2 = "This is the text in the message attachment.";
				

				

				public static void main(String[] args) {
				

				if (args.length != 4) {
				

				System.out.println("usage: java msgmultisend
				true|false");
				

				return;
				

				}
				

				

				String to = args[0];
				

				String from = args[1];
				

				String host = args[2];
				

				boolean debug = Boolean.valueOf(args[3]).booleanValue();
				

				

				// create some properties and get the default Session
				

				Properties props = new Properties();
				

				props.put("mail.smtp.host", host);
				

				

				Session session = Session.getDefaultInstance(props, null);
				

				session.setDebug(debug);
				

				

				try {
				

				// create a message
				

				MimeMessage msg = new MimeMessage(session);
				

				msg.setFrom(new InternetAddress(from));
				

				InternetAddress[] address = {new InternetAddress(to)};
				

				msg.setRecipients(Message.RecipientType.TO, address);
				

				msg.setSubject("JavaMail APIs Multipart Test");
				

				msg.setSentDate(new Date());
				

				

				// create and fill the first message part
				

				MimeBodyPart mbp1 = new MimeBodyPart();
				

				mbp1.setText(msgText1);
				

				

				// create and fill the second message part
				

				MimeBodyPart mbp2 = new MimeBodyPart();
				

				// Use setText(text, charset), to show it off !
				

				mbp2.setText(msgText2, "us-ascii");
				

				

				// create the Multipart and its parts to it
				

				Multipart mp = new MimeMultipart();
				

				mp.addBodyPart(mbp1);
				

				mp.addBodyPart(mbp2);
				

				

				// add the Multipart to the message
				

				msg.setContent(mp);
				

				

				// send the message
				

				Transport.send(msg);
				

				} catch (MessagingException mex) {
				

				mex.printStackTrace();
				

				Exception ex = null;
				

				if ((ex = mex.getNextException()) != null) {
				

				ex.printStackTrace();
				

				}
				

				}
				

				}
				

				}