Java projects compile 2x faster than Kotlin projects and don't hang the IDE. Kotlin is nice for small stuff but has severe issues when scaling up. Also, Java i

Java projects compile 2x faster than Kotlin projects and don't hang the IDE. Kotlin is nice for small stuff but has severe issues when scaling up. Also, Java is far, far simpler to code in compared to Kotlin. Modern Java is quite pleasant. The language advantages of Kotlin frankly aren't enough to switch. It may have been supreme in 2016, but Kotlin has lost most of its head-start now. Java has caught in both mature language features and lean libraries. And folks do prefer simpler languages. There is a reason that Go is popular.