dev-java/jython-2.5.3-r2 cannot compiled against dev-java/jnr-constants-0.8.4 see log attached. with jnr-constants-0.8.3 its compiling fine.
Created attachment 355126 [details] jython-2.5.3-r2.log
+ 21 Sep 2013; Tom Wijsman <TomWij@gentoo.org> +jython-2.5.3-r3.ebuild, + -jython-2.5.3-r1.ebuild: + Pick correct jnr-constants dependency, fixes bug #479760 reported by Denny + Reeh. Removed oldest revision.