[Exception]: a java mail exception

do you get this exception stack:

Exception in thread "main" java.lang.NoClassDefFoundError: javax/mail/Message
 at javamail.Main.main(Main.java:8)
Caused by: java.lang.ClassNotFoundException: javax.mail.Message
 at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
 ... 1 more
Java Result: 1

the exception thrown because you miss the Mail API.
You can download it here: http://java.sun.com/products/javamail/downloads/index.html
to fix it up, just add the required Mail API.
[see here to see how to link an external library]

have a good day

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