Meta has been at work to port their Android codebase from Java to Kotlin. In the process, they have learned a number of lessons of general interest and developed a few useful approaches, explains Meta ...

Java still holds a large majority, with 86.9% of developers saying they use it as their main programming language for building JVM applications, compared to 5.5% with Kotlin.

The growth has put Kotlin in second place, albeit well behind Java, but now ahead of Clojure and Scala. Oracle JDK – Java Development Kit – is also losing share to OpenJDK alternatives.