The "different tooling" you mention should be the Java language itself. Let's not kid ourselves, literally no one writes enterprise applications in Java without

The "different tooling" you mention should be the Java language itself. Let's not kid ourselves, literally no one writes enterprise applications in Java without some kind of a framework, and lives to tell the tale/doesn't go crazy. Since Spring is a de-facto "official" framework to write Java apps in, we might as well clean it up for inclusion into the core Java language, with attention paid to transparency to tooling in IDEs.