[roykanesmith37]

Java projects can get complex and editors (like IntelliJ can provide much better tooling when configured).

At my last job we had a mono-repo with the .idea directory (for IntelliJ) commited. For Java projects IntelliJ needs to sometimes be directed to understand what folders are “resources” to allow better autocompletion and highlighting. For example specifying custom java faces components directory that will be used once the application is packaged into a war file, so IntelliJ knows they are accessible from JSP html files, and will autocomplete and show you what attributes you can modify on the component.

It’s definitely not a never situation. You can commit only certain files from the configuration (project settings not editor preferences)