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(", ", ", ")")) }