The dev-java/sablevm ebuild specify LGPL-2.1. The ebuilds install 2 tarballs: SableVM - that is indeed LGPL-2.1 A modified GNU Classpath - that is GPL-2 plus an exception: http://www.gnu.org/software/classpath/license.html I believe the LICENCE value should read: LICENCE="LGPL-2.1 GPL-2"
LICENSE="LGPL-2.1 GPL-2-with-linking-exception" updated thanks