Last night I dreamt I found a class with equals—but not hashCode—overridden. Now I'm paranoid that code is real and in production somewhere.
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It would be better if java.lang.Object (or Any for that matter) defines hashCode = 1
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It would at least be always correct but terribly slow.
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So, it's funny I totally overlooked your point iťs *universally correct*, and thought only about the constant-to-linear complexity increase…
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