Effectively final effective?

[Paulo Levi]

I ask is accessing a "result" like that going to use Futures for all
variables?
Only way i see to make the threaded case in the function receiving the
lambda to work. Blocking things like that makes this useless for most use
cases.

(i think this idea is a mistake and too much magic)

Besides java has always emphasized one return value, and that is a good
idea, even if i cursed it myself sometimes. That "return" style seems more
motivated by a avoidance of return wrappers or workarounds for void lambdas
than anything else.