I'm in a situation where I will be decompiling quite a bit of existing JARs. I've found JAD to be quite useful and even took a look into DJ Java Decompiler.
The problem I'm facing now is that I may very well have to switch environments. I'll probably be on something *nix but most likely CentOS or Ubuntu. Are there any good cross-platform Java Decompilers? JAD appears to be Windows only. I can't do too much research on the topic because the original site doesn't exist either.
What is wrong with JAD?
Here's a link to JAD downloads mirror site with downloads for many different systems platforms.