jad-bin : Jad - The fast JAva Decompiler ( http://www.kpdus.com/jad.html )
jardiff : Compare jar files ( http://muzso.hu/2010/11/20/jardiff-create-a-diff-of-the-public-api-of-two-jar-files )
jd-gui : A standalone graphical utility that displays Java source codes of .class file ( http://jd.benow.ca/ )
keystore-explorer : Keystore management tool. ( http://keystore-explorer.sourceforge.net )
portecle : Keystore management tool. ( http://portecle.sourceforge.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a anomen
For Paludis use this rsync : rsync://gentoo.zugaina.org/anomen-portage
If you have a problem : ycarus(-at-)zugaina.org