Have a need to compile your Rails app (on JRuby)? If you're shipping a Rails app as a product and need to
protect your IP, JRuby can compile your *.rb files to first class Java class files... but you'll need this
patch.
After applying that, you can simply do this:
[code language=ruby]
jrubyc app/ lib/
rm `find app/ lib/ -name '*.rb'`
[/code]