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  1. ,
    Expert tip

    This error means there's a class missing in your classpath during runtime. You need to create a jar with all your dependencies and have it in your classpath. Check Maven Assembly Plugin and how to add your dependencies to a jar: https://goo.gl/U2zr8k

  2. ,

    I had to build one fat jar that will include all dependencies from the other jars that i wanted to use.

Solutions on the web

via Coderanch by Joel Bijapurkar, 1 year ago
Demo.SendMailDemo
java.lang.ClassNotFoundException: Demo.SendMailDemo	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)	at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)