really an awesome approach and tutorial, thank you!
I will use this approach for an application which I have to develop for my master thesis. But I have on problem…

I have a directory “foo” inside the “lib” directory. In this directory are X .rb files which I want to load at the beginning. I thought it would be enough to put something like:
Dir['lib/foo'].each { |file| require file }
into “application_bootstrap.rb”, but it doesn’t work when calling the .jar file directly (i.e. cd pkg; java -jar MyApp.jar). I tried nearly all possible paths but it seems to me that it is not possible to get all files of a directory *inside* the jar file.

Du you have an idea? Thank you very much in advance!