Wrote an ebuild for the eclipse uml editor. Find it attached. Needs my eclass changes submitted some time ago Reproducible: Always Steps to Reproduce:
Created attachment 63766 [details] dev-util/eclipse-uml-bin-1.1.0 The ebuild.
Sorry about no-one responding to this bug. Please use the Eclipse update manager from now on to install binary plugins or reopen the bug with a from source ebuild.