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I suppose I could get the parent job inside my non cancellable block and add a cancellation listener which throws a cancellation exception

You should be able simply pass parentJob to withContext instead of noncancellable

Ah, of course. A much more elegant solution :ok_hand:

I probably need an `ensureActive()` after my `withContext` since I don't think it'll throw if the job has been cancelled during the delay

Did they change this? I thought it was only when it resumes it checks for this?

No, I need an `ensureActive()`:
```runBlocking {
    val parent = Job()
    val child = launch {
        withContext(parent) {
            delay(100L)
        }
        println("After")
    }
    delay(50L)
    child.cancel()
}```
This code still prints after

Adding a `ensureActive()` before `println` it works as expected

Ah, i thought you're about putting ensureActive  directly after delay (withing withcontext block)