how to create a bundled runnable jar using Ant

Question

I looked at this question, but it didn\'t really solve my problem, so I figured I\'d post a new one.

I need to create a runnable jar (runnable simply by double click

Answer 1

Take a look at your manifest file, it's most likely an issue in there. I've only seen that error when the manifest file is incorrect.

Just speculation, but I think it's trying to run a ".java" file as it's main class, which isn't going to work.

See the oracle tutorial: http://docs.oracle.com/javase/tutorial/deployment/jar/appman.html.

If that doesn't help at all, post the contents of your manifest file as well as the directory structure of the .jar file in your original question.