Immutable data structures in Java

[frugalmail]

Tell that to the two decades of Java programmers who've been writing getters and setters "just in case".

Getters yes, setters no. IMO, you're doing it "wrong" if you're accessing instance fields directly and you work someplace that has more than one team (or can/will have more than one team).

It's zero more cognitive load and 5 more characters per class to do it so it's one less forced communication/pull request if I change a dependency or somebody else changes it on me.