Exception trying to compile and run JavaMail App

[Michael K. Wilson]

I am using JDK 1.5, JavaMail 1.4, and the Java Activation Framework (downloaded from Sun)...

Am trying to get this sample app to work and it keeps throwing an exception!

public class MailClient
{
	public void sendMail(String mailServer, String from, String to,
			String subject, String messageBody)
			throws MessagingException, AddressException
	{
		// Setup mail server
		Properties props = System.getProperties();
		props.put("mail.smtp.host", mailServer);

		// Get a mail session
		Session session = Session.getDefaultInstance(props, null);

		// Define a new mail message
		Message message = new MimeMessage(session);
		message.setFrom(new InternetAddress(from));
		message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
		message.setSubject(subject);

		// Create a message part to represent the body text
		BodyPart messageBodyPart = new MimeBodyPart();
		messageBodyPart.setText(messageBody);

		// use a MimeMultipart as we need to handle the file attachments
		Multipart multipart = new MimeMultipart();

		// add the message body to the mime message
		multipart.addBodyPart(messageBodyPart);

		// Put all message parts in the message
		message.setContent(multipart);

		// Send the message
		Transport.send(message);

	}
	
	public static void main(String[] args)
    {
        try
        {
            MailClient client = new MailClient();
            String server="mail.gmail.com";
            String from="[e-mail]";
            String to = "[e-mail]";
            String subject="Test";
            String message="Testing";
        
            client.sendMail(server,from,to,subject,message);
        }
        catch(Exception e)
        {
            e.printStackTrace(System.out);
        }
        
    }
}

Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream
	at javax.mail.Session.loadProvidersFromStream(Session.java:928)
	at javax.mail.Session.access$000(Session.java:174)
	at javax.mail.Session$1.load(Session.java:870)
	at javax.mail.Session.loadAllResources(Session.java:1130)
	at ...

I have mail.jar and activation.jar in my CLASSPATH so I don't understand what the problem is...

-Mike

[Michael K. Wilson]

Figured it out...

I am using MyEclipse for my development environment and for web enabled projects it contains a jar file called javaee.jar (which is bundled with mail.jar and activation.jar).

When I tried to use these particular jars, it didn't work... Resulting in me having to remove javaee.jar and manually place mail.jar and activation.jar on MyEclipse's build path.

-Mike