as-is has been removed from the free license groups so maybe java-virtuals/servlet-api should be changed to somthing in the FREE group for people only using ACCEPT_LICENSE="-* @FREE"
IMO the simple (< 10 lines) config files installed by java virtuals don't reach the threshold of originality and are therefore not copyrightable. So "public-domain" should be fine.
All java-virtuals now use public-domain, see bug 426800. Thanks for the report.