java.lang.NoClassDefFoundError

javax/mail/MessagingException

Samebug tips9

A few things cause this exception: 1) Check if you have all jars and if they're in the correct path when running. 2) Your classpath might be broken, you can define it in the command line with "java -cp yourClassPath" or at your IDE if you're using one.

If you're using Hibernate, this indicates you're missing FasterXML Classmate dependency, which you can add to your dependencies. To add it, the groupId is com.fasterxml and artifactId is Classmate.

Don't give up yet. Our experts can help. Paste your full stack trace to get a solution.

Solutions on the web3951

  • via ant-user by Patrick Martin, 9 months ago
    javax/mail/MessagingException
  • via Coderanch by darren schild, 7 months ago
    javax/mail/MessagingException
  • via Google Groups by Gili, 1 year ago
    javax/mail/MessagingException
  • Stack trace

    • java.lang.NoClassDefFoundError: javax/mail/MessagingException at MailServer.<init>(MailServer.java:22) at MailServer.main(MailServer.java:522) Caused by: java.lang.ClassNotFoundException: javax.mail.MessagingException at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 2 more

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