Risking discussing religiousity: Java as a language has some rough-edges: multiple inheritance and verbosity. Personally, I'd use Kotlin if there were a requir

Risking discussing religiousity: Java as a language has some rough-edges: multiple inheritance and verbosity. Personally, I'd use Kotlin if there were a requirement to run on the JVM. In terms of the JVM: Erlang VM is under-appreciated: each "process" (not an OS process and lighter than an OS thread) has its own heap so there's no global GC pauses, share-nothing and let-it crash doesn't take out Erlang VM. For anyone stuck on JVM, look at Azul's free Zing for shorter/less GC pauses and a generally faster JVM.