I think he was being not sarcastic, but satirical – he was writing a parody of Java programmers. So he didn’t really mean that nullary wasn’t a word; he was just saying that existing Java programmers might be confused by all the changes and new ideas they will have to learn. But thanks for explaining ‘nullary’ anyway – I couldn’t remember what it meant.
True, also thanks randomguy for the explanation, If I've come across that word I couldn't recall it. Normally I'd just look it up but then all the other terms hit me and I just had to write something to show the level of frustration I'm already sensing about Java 8.
Edit: Looking at jebblue’s comment again, maybe I'm understanding him wrong and he’s serious after all. Poe’s law (http://en.wikipedia.org/wiki/Poe%27s_law) is in effect. In case “Closure, isn't that a language?” is serious, here’s the answer: no, but Clojure (http://clojure.org/) is. The name “Clojure” is a pun on “closure” (source: https://groups.google.com/d/msg/clojure/4uDxeOS8pwY/UHiYp7p1...).