Алсо:
https://wiki.openjdk.java.net/display/loom/Main#Main-TailCalls> We envision tail-call elimination that pops one or perhaps even an arbitrary number of stack frames at explicitly marked call-sites. It is not the intention of this project to implement
automatic tail-call optimization.
> The implementation of this feature requires cross-cutting changes to the VM, VM specification (bytecode), and possibly the front-end Java compiler (javac). As a result, in order not to delay the completion of continuations and fibers, we will only begin specifying and implementing this feature only when the project is at a more advanced phase.
вспоминая другие фичи Loom которые были обещаны и теперь отложили на потом, в первой версии мы вероятней всего TCE не увидим