Currently on a Gradle 7 project, and I have this thing here:

abstract class AbstractMyTask : DefaultTask() {
  abstract val base: Provider<String>
  private val derived = base.map { ... }
}

abstract class MyTask : AbstractMyTask {
  override val base = ...
}

It seems Gradle is unable to create

MyTask

instances due to a

NullPointerException

on

derived

in

AbstractMyTask

. Is this a known thing?

Sure, that's just normal Kotlin, same as in Java. First

AbstractMyTask

is initialized and later

MyTask

. So the time

derived

is initialized the overridden

base

in

MyTask

is not yet ready. That's why you should not use overridable properties in initializers or constructors.

Fair enough.