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E:\junior\Java\javawork>javac SimpleMail.java

E:\junior\Java\javawork>java SimpleMail
Exception in thread "main" java.lang.NoClassDefFoundError: javax/mail/Address
Caused by: java.lang.ClassNotFoundException: javax.mail.Address
  at java.net.URLClassLoader$1.run(Unknown Source)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.net.URLClassLoader.findClass(Unknown Source)
  at java.lang.ClassLoader.loadClass(Unknown Source)
  at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
  at java.lang.ClassLoader.loadClass(Unknown Source)
  at java.lang.ClassLoader.loadClassInternal(Unknown Source)

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