Earlier quoted context omitted.
You mean the servers Apple has running on WebObjects, JEE and Clojure for iTunes, Apple Maps and their iCloud?
iTunes is based on a 17 year old code base with a framework that hasn’t been updated in a decade. Not exactly a ringing endorsement of Java. Seeing that Apple started a project to rewrite Maps back in 2014, hopefully they didn’t decide to rewrite it using WebObjects ( https://appleinsider.com/articles/14/07/01/apple-overhauling... )
Maps uses Clojure, and is partially developed here in Berlin.