LISP has had higher order functions from day 1. Even Java's big rival at the time, Smalltalk, had them. Yet, they were only added to Java in 2014. I think that

LISP has had higher order functions from day 1. Even Java's big rival at the time, Smalltalk, had them. Yet, they were only added to Java in 2014. I think that Java suffers from NIH syndrome. Nothing that other languages do is good enough for Java until it has been debated for years and reimplemented using new patterns and unknown terminology.