Hello, I stumbled upon your discussion on haskell-cafe and this theme seems to pop up one time or another. If someone is interested, I have some Java code for compiling Haskell98 to bytecode that I would be more than willing to share. It is not in the best shape and does not implement all of haskell but most low-level work to generate classes and bytecode from haskell code is implemented (patternmatching, data constructors, lazy functions, ...). This is a project I started some years ago and used for specification of simple functional behaviour (without complex type system) in Java. Regards, -- Arnaud Bailly, Dr. - Ingénieur de Recherche NORSYS 1, rue de la Cense des Raines ZAC du Moulin 59710 ENNEVELIN Tel : (33) 3 28 76 56 76 Mob : (33) 6 17 12 19 78 Fax : (33) 3 28 76 57 00 Web : http://www.norsys.fr