So I created a nice little app that uses swt using Eclipse in a Windows 7 environment. I created an executable jar file using fat-jar and it runs fine anywhere on this machine (I have not tested on other Windows 7 machines since I only have one).

Now I want to make this thing work on a Mac OSX machine that only has the JRE installed. I have, however, not been able to do this. Clearly the executable jar that I created for Windows 7 would not work on the Mac OSX, but I am not sure what I need to actually do to make the same code work on the Mac. That is, by running the jar directly.

Any help would be greatly appreciated =). If needed I can elaborate a bit on the details.