Lustr is a Ruby DSL for GUI development. Lustr4JRuby allows Lustr UIs to be
displayed via JRuby/Swing.

More details on Lustr can be found at home page[http://www.codecorps.org/moinmoin/index.cgi/Lustr]
or on the RubyForge[http://rubyforge.org/projects/lustr] site.