I can build all other gradle sub-projects ... only the jsTest stuff is broken...

Ok here is the deal: I have an external dependency (kotest-js) that brings in

kotlinx-coroutines-core.1.6.1

And my lib pulls

kotlinx-coroutines-core.1.6.0

Somehow the compiler does not remove the smaller version from the

icCacheMap

which some steps later results in the NPE.

After updating my dep to

kotlinx-coroutines-core.1.6.1

the errors is gone.

So in short: It is a problem in the dependency resolution in the kotlin compiler