tomcat mail/session problem

[John L�ssig]

Hi
I'm trying to write a servlet, which sends email. I've installed tomcat 5.0 and use the JavaMail-API.
My program looks as follow:

 
Properties props = System.getProperties();
props.put("mail.smtp.host", smtpServer);
Session session = Session.getDefaultInstance(props);
Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from));
msg.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(to, false));
msg.setSubject(subject);
msg.setText(body);
msg.setHeader("X-Mailer", "LOTONtechEmail");
msg.setSentDate(new Date());
Transport.send(msg);

Always when i try to to the session-setup (third line of the code-snippet), the program crashes ...
When i use the same program as a normal java-app, whitout tomcat, everythings work fine. I really guess, there is a cohesion with tomcat, because in the tomcat-admin may a mail-session be defined !!
Can anyone help me please?
thanks
flavio

[Mike Curwen]

what do you mean by "crash"?

[John L�ssig]

I get the following exception:

  
javax.servlet.ServletException: Servlet execution threw an exception
java.lang.NoClassDefFoundError: javax/mail/Message
pav.Start.doPost(Start.java:130)
javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

I looks like a classpath wouldn't be set properly, but I controlled everything....
Actually I include following .jar-Files: j2ee.jar, mail.jar, activation.jar all from the J2EE-SDK.

[John L�ssig]

ok ...... i got it:
i needed to copy mail.jar and activation.jar into the WEB-INF/lib directory ....

now, everythings work fine (after 10 hours! )