ant : Java-based build tool similar to 'make' that uses XML configuration files. ( http://ant.apache.org/ )
icedtea : A harness to build OpenJDK using Free Software build tools and dependencies ( http://icedtea.classpath.org )
icedtea-bin : A Gentoo-made binary build of the IcedTea JDK ( http://icedtea.classpath.org )
icedtea-sound : Plugins for javax.sound ( http://icedtea.classpath.org )
icedtea-web : FOSS Java browser plugin and Web Start implementation ( http://icedtea.classpath.org )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a rainyday
For Paludis use this rsync : rsync://gentoo.zugaina.org/rainyday-portage
If you have a problem : ycarus(-at-)zugaina.org