A modern programming language that makes developers happier.

kotlinlang

Since Gradle now provides a dedicated `annotationProcessor` configuration, some would assume that it works for both Java and Kotlin but it is not the case, Kotlin users still have to use `kapt` configuration. Why can't `annotationProcessor` be usable for Kotlin users as well?

It configures the processors for the Java compilation task, not the Kotlin one.

there may be such a case where you want to have different sets of processors for each language, without this separation it would not be possible