I recently finished making my game using Slick2D, and now I'm trying to create a jar file to play the game. I looked on the Slick forums, and saw that JarSplice was the recommended program. So I used JarSplice, and made my jar, but it doesn't work. Well, I shouldn't say that, it doesn't work on my Mac, but it does work on a Windows PC. I'm positive I added all the natives files necessary for Mac OS X. By doesn't work, I mean that the Jar Launcher application opens briefly, and then closes. This problem doesn't occur with other jar files, and my java software is up to date. If it makes a difference, I wrote the game in Eclipse on a Mac.
Does anyone know how to fix this, or have any other programs that I could use to make a jar file?