I actually checked Play! on akka-http on Graal (maybe I write a Blog about it). Just the "Hello World" of Play! and I've seen like 25% improvements in request/s

I actually checked Play! on akka-http on Graal (maybe I write a Blog about it). Just the "Hello World" of Play! and I've seen like 25% improvements in request/s with CE. I think a full Scala Codebase get the most out of Graal. However running Play dev mode with Graal EE didn't worked well it sometimes had strange Class issue's where it tried to search a "java.lang.Boolnae" class (notice the misspelling) I also looked into what else Graal is capable of and it's cool to run C programs or even curl on top of it. Sadly I wished the NODE.JS integration would've been better. I wished I could run angular universal on top of Graal within Play! so that Play! would've been able todo the same thing than .net core with it's angular integration (just without running node!). However Graal can only run "pure" JavaScript (https://github.com/graalvm/graaljs/issues/2 https://github.com/graalvm/graaljs/issues/2). (native-image does not work with Scala 2.12 (Scala 2.12 emit's indy which does not work with SubstrateVM) or even Play! on 2.11 did not work)