I developed Java in Emacs using lsp-mode and the Eclipse Language Server, it worked quite well but there were some things it couldn’t do/I couldn’t figure out h

I developed Java in Emacs using lsp-mode and the Eclipse Language Server, it worked quite well but there were some things it couldn’t do/I couldn’t figure out how to do (moving a class to a different package was something I never figured out). It definitely worked though, and I found I was productive. I ended up moving to IntelliJ after being a long term Eclipse user and then using Emacs for about a year. I miss the keyboard-driven environment in Emacs and the more parsimonious keybindings, but IntelliJ is better as an IDE. Still use Magit though. You don’t have to master Elisp at all to use Emacs, I have written very little Elisp. However I did use a distribution (Prelude, then Doom Emacs) which did a lot of the heavy lifting in setting up my initial environment - YMMV if you go in with vanilla Emacs and then edit your init.el until you find a working configuration for your needs.