My comment was poorly phrased regarding libraries. What I meant was there's plenty of code if want to use lambdas for that isn't a carefully planned api boundar

My comment was poorly phrased regarding libraries. What I meant was there's plenty of code if want to use lambdas for that isn't a carefully planned api boundary. Even with the provided function interfaces I worry there will be cases they don't cover which means people won't use anonymous functions where they're useful. However, given you seem to have used Java 8 and. I haven't, I'll relent :)