JarClassLoader loads classes from a jar, and uses zip for compression.

I compresses a few of my class directories using jar and bzip2, and
noticed that bzip2 compresses about 30% better than jar.

(Using zip instead of jar doesn't work any better btw)

So, how about creating a BZipClassLoader? And how about integrating
it into URL, so that we can load things like:

bzip:file:a.bz2!a.class or something like that?

Does anyone know of any small bunzippers/bzippers written in Java?