> let's say I'm writing a kleenex program to explore some feature. Not nice if you make me feel all kind of boilerplate. Use Groovy. Seriously, you can code it

> let's say I'm writing a kleenex program to explore some feature. Not nice if you make me feel all kind of boilerplate. Use Groovy. Seriously, you can code it up with zero boilerplate, use the REPL, notebooks, etc to get your idea into shape, all with 100% interop with your Java libraries. When you are done, if parts of it should graduate to "real code", you can pretty easily port it over or keep parts of it in Groovy and just take the elements over that need to be Java for robustness, etc. This is actually my standard workflow in development now.