So, a coworker I was introducing to Kotlin countered with "Have you heard of Xtend?" Hadn't heard of that before so I looked it up, and it seems to be serving a lot of the needs Kotlin is also catering towards (except nullability, from what I've seen). I haven't seen any talk about it around here, but is there any comprehensive comparison of Kotlin and Xtend, specifically? Or would anyone be able and willing to quickly write up the most important points?