All Codehaus services will be terminated progressively up until May 31st 2015.
With increasing diversity in opensource hosting platforms like Github and Bitbucket - who are meeting the needs of 1000s of projects - it makes sense to end the opensource hosting services of Codehaus.
Codehaus has operated at a loss for several years now (we're not powered by venture capital), and can not compete with the army of developers and integrated product offerings that are now commonplace.
The platform was to be terminated at the end of February 2015, however SonarQube has graciously offered to sponsor Codehaus for a few months to aid in the transition.
Here's the list of ebuilds that have either SRC_URI or HOMEPAGE pointing to codehaus.org.
monsieurp@epsilon ~/gentoo-x86/dev-java $ grep -iR --include=*.ebuild codehaus * | perl -F':' -lane '(my $str = $F) =~ s/\A.*?\/(.*?)\Z/$1/; print "dev-java/$str\n";' | sort -u
another mistake: codehaus (they) ARE shutting down their website.
most packages are not fixed 2 years later.
please have a look at https://github.com/codehaus