What can I leave out when creating an executable JRuby jar ?

Question

I've attached an image of what JRuby.jar contains:

http://www.freeimagehosting.net/uploads/fbfd966375.png

The problem is that even for simple scripts, the resulting jars have about 8mb. Can you tell me which folders I could remove from there, and still have it running ... or what's the purpose of some of that folders?

Answer 1

You could try repackaging the jar with pack200 if you just want a better compression ratio.

JRuby does bundle all its dependent Java libraries, so it won't be easy to trim those back. Stay tuned or follow progress on JRuby for Android for a more minimal jar.