I was looking for a simple way to package my jar file into a mac Application Bundle a few hours ago. It appears that you can no longer get the bundling application through xcode, or at least, I couldn’t find it… So, I made this 
Download it here.
Features:
- load jar file
- load icon (uses any PNG file)
[sub](I know that’s quite a hefty list).[/sub]
This will not work on any os besides mac OSX, as I used two shell commands that are OS specific. (One for converting the icon preview image to a .icns file, and the other to execute the “launcher” file).
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This might be the messiest application I have written in awhile; I started writing this at 4:00 AM.