Question

So when exporting the project as a runnable jar, the jar works fine on the current machine.
Moving the jar to another machine, and it cannot find the main class:
Used cmd to get the error:

        Desktop>java -jar RunMe.jar
Exception in thread "main" java.lang.ExceptionInInitializerError
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoa
der.java:56)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 500
        at pnl_user.readFile(pnl_user.java:667)
        at pnl_user.readTNS(pnl_user.java:432)
        at pnl_user.<init>(pnl_user.java:412)
        at main.<clinit>(main.java:9)
        ... 3 more

Answer 1

To run a JAR file use java -jar thejarfile.jar.

java runme would try to run the class runme from the current classpath (which is probably not set up to point to your application).