> I am surprised how much legacy inefficient crap is lingering around in companies like Uber. Maybe there are some JVM specific libraries they need for things

> I am surprised how much legacy inefficient crap is lingering around in companies like Uber. Maybe there are some JVM specific libraries they need for things like mapping that don't exist on GoLang? From reading their tech blog, it sounds like they're mostly a GoLang shop and they were apparently Python before that. So it seems like they're probably forced into using Java because some of the libraries they use aren't worth rewriting in-house to avoid having to use the JVM.