JAVA: MAIL: How can i solve ClassNotFoundException : javax.mail.internet.AddressException?

问题

I have some code to send an Email, It works perfectly in my system. But the problem is I copied this program to another system and which gives the following error on runtime.

ClassNotFoundException : javax.mail.internet.AddressException

Note: Both System are Windows 7

Error

Exception in thread "main" java.lang.NoClassDefFoundError: javax/mail/internet/AddressException
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
    at java.lang.Class.getMethod0(Unknown Source)
    at java.lang.Class.getMethod(Unknown Source)
    at sun.launcher.LauncherHelper.getMainMethod(Unknown Source)
    at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException:javax.mail.internet.AddressException

    at java.net.URLClassLoader$1.run(Unknown Source)
    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)
    ... 6 more   

回答1:

It seems that your dependency jar file are not download or it has some conflict with your dependency.

javax.mail.internet.AddressException locate in the javax.mail-1.4.x.jar.

Can you post your library list or your dependency?

来源：https://stackoverflow.com/questions/28359305/java-mail-how-can-i-solve-classnotfoundexception-javax-mail-internet-address