Actually Kotlin has null safety as well[1]. Not sure how generics in Kotlin compare to Ceylon, but it also improved on Java's generic support[2] by eliminating wildcards, type projection, inferred types and some other features.
Random question, but how far along is Ceylon's development compared to Kotlin's? I know they're both relatively new still, but just wondering how feature complete it is so far.
I hate to say it because I like JetBrains and have given them lots of money over the years but I prefer Ceylon to Kotlin. They are very similar languages but I just like the Ceylon syntax more.
