Kotlin 1.0 Released
Qbertino writes: Kotlin, one of the challengers to Java's VM, has been released in version 1. Kotlin is object-oriented, statically typed and comes with professional IDE support by Jetbrains — which is no big surprise, since it's the Jetbrains employees who developed the programming language that saw the light of day four years ago. Kotlin is already in real-world use and development will be moving into fleshing out the Kotlin feature set without breaking backwards compatibility. These features include planned support for JavaScript — which sounds interesting considering JS has gained quite some traction recently. Kotlin is FOSS and is released under the Apache license.
Kotlin is yet another language to be run in the JVM. It is not a competitor to the JVM as the description suggests.
Possible candidate for a counterexample: Clojure (https://clojure.org/). It runs on the JVM, but, as it is a dialect of Lisp, I would not consider it "just syntactic sugar on top of Java"