sci-mathematics/isabelle/isabelle-2013-r1 depends on java packages without a slot: dev-java/ant-core >=dev-java/jcommon-1.0.18 >=dev-java/jfreechart-1.0.14 >=dev-java/itext-2.1.5 These should be slot dependencies to avoid breaking on updates. This bug blocks the removal of the itext mask as ">=dev-java/itext-2.1.5" supports slot switching. Reproducible: Always
Fixed in 2013-r1 and 2013.2.