in src/main/scala/kotlin/KotlinCompile.scala [290:298]
def compile(args: AnyRef): Boolean = {
val compiler = compilerClass.getDeclaredConstructor().newInstance()
val result = compilerExec.invoke(compiler,
messageCollector, servicesEmptyField.get(null), args: java.lang.Object)
result.toString match {
case "COMPILATION_ERROR" | "INTERNAL_ERROR" => false
case _ => true
}
}