Experimental_Java_tree

The experimental Java tree is available through SVN at:

https://svn.gentooexperimental.org/svn/java/gentoo-java-experimental

If you don't have subversion installed yet, you need to start by emerging it:

emerge subversion

In order to install the experimental tree on your machine, you need to perform the following steps (either as root, or give your user write access to /usr/local)

mkdir -p /usr/local/overlays/java-experimental
svn co https://svn.gentooexperimental.org/svn/java/gentoo-java-experimental /usr/local/overlays/java-experimental

Edit /etc/make.conf and add /usr/local/overlays/java-experimental to PORTDIR_OVERLAY, i.e. PORTDIR_OVERLAY="/usr/local/portage /usr/local/overlays/java-experimental"

Update: overlay has moved to http://overlays.gentoo.org/svn/proj/java/gcj-overlay/

You may also need to install the migration overlay, see https://projects.gentooexperimental.org/expj/wiki/Using_migration-overlay

Then you should be all set to emerge stuff from the experimental tree.