Runnable jar file generated by Eclipse wont execute?

Question

I generated a very simple runnable jar file using Eclipse\'s \"Export-->Java-->Runnable Jar File\" function. My HelloWorld class looks like this:

import ja         


        

Answer 1

In my case, by mistake I had not declared the class containing public static void main() as a public class. After declaring the class as public was able to resolve this issue with the next export as runnable jar via eclipse...

Hope this helps...

Answer 2

Uninstalling all older java versions on my machine fixed the issue for me.

At my end I was able to run the .jar file with the command line, but not with the default double-click option. Afterwards the latter was working again

Answer 3

Jars are never 'executable' in this sense. What this jar is good for is:

java -jar YOURJAR.jar

update the backtrace you supplied is bizarre. It appears that Windows decided to go ahead and launch your jar with some version of Java, but pass it a pathname in the place of a class name. I don't know what the story is with that.