src/sbt-test/kotlin/kotlin-2.2-compat/build.sbt (11 lines of code) (raw):
import kotlin.Keys._
name := "kotlin-2.2-compat"
enablePlugins(KotlinPlugin)
kotlinLib("stdlib")
kotlinVersion := "2.2.0-RC"
kotlincJvmTarget := "1.8"
val listClasses = taskKey[Unit]("listClasses")
listClasses := {
val classes = (Compile / classDirectory).value.listFiles()
streams.value.log.info("classes: " + classes.mkString("Array(", ", ", ")"))
}