CODEWITHSUNDEEP
javaclassjar
Alexandre Loctin
Alexandre Loctin

Reputation: 129

error could not find the main class program will exit after netbeans

When i compile and run my program in eclipse, it works. When i run my .jar program on my personal computer (Windows 8 with java JDK 7), it works. But when i'm trying to run .jar in others computers, it doesn't work.

So i tried to run with command line java -jar myjar and i got this message which i can't understand

java -jar "Bureau\Application SNCF\SNCF.jar"

Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file

    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(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 java.lang.ClassLoader.loadClassInternal(Unknown Source)

Does anyone understand this message error? Thanks for your help

Upvotes: 0

Views: 3287

Answers (1)

NightWhisper
NightWhisper

Reputation: 530

This is always caused by the conflict of different Java JDK at compile time and runtime, make sure you are using same JDK version to compile and run it.

Upvotes: 2

Related Questions