The dependencies for 3.8.1-11 end up requiring libequinox-osgi-java >= 3.9.1 (through eclipse-rcp), which doesn't have /usr/lib/eclipse/plugins/org.eclipse.osgi_3.8.1.dist.jar
Going back to stable, 3.8.1-10 for the eclipse packages at least catches that jar, but fails after an illegal reflection error. Maybe it will work with an older jdk that's less picky, I haven't tried. Is there any intent to package the newer versions of eclipse? It looks like 3.8 is eol at this point. Rafi