Build of dev-java/rxtx-2.2_pre2-r1 fails when building with doc useflag.

Manually building 'USE="-doc" emerge dev-java/rxtx' works.

I've tried disabling 'doc' for rxtx completely by setting "dev-java/rxtx source -doc" in /etc/portage/package.use/dev-java-rxtx but emerge ignores that completely regardless of whatever i try. Maybe i'm missing something?? (help!)

I dunno how to fix this on my own, so i just report it here.

Maybe somebody has a hint why emerge steadily tries to rebuild rxtx with doc use flag?

Hacky
emerge_info
emerge_pqv
build.log
environment
epro_show