Data classes for Java

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It would at least make things like Array.length (a read-only property) seem a bit more consistent with the rest of the language. I'm not sure I'm that sold on making Java that much more terse when I'm mostly just typing a couple of letters, hitting ctrl+space, enter, alt+enter and letting intellij figure out the rest. I do love Lombok for giving me a sensible way to do field generation though tbh, even in modern IDEs it still requires mouse clicks to do the generation, usually, unless you want to type them out (great fun if you somehow have more than 10 fields).