> Java is disliked on HN because it represent "enterprise" - big long-lived organizations which maintain a codebase for decades

It's one of the few languages out there capable of producing a codebase that lasts for so long. That annoying verbosity and enforcement of naming conventions and directory structure mean that the Next Guy (or Gal) to come into the project and probably figure out what's going on. Most codebases written in other languages are constantly rewritten in the language de jure.