Why does computingMap support identity equality for keys against equals()?

StackOverflow https://stackoverflow.com/questions/2136915

  •  22-09-2019
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Question

I've been reading that ComputingMap only supports identity equality and not the equals(). Can someone clarify why?

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Solution

As for all concurrent maps built using MapMaker, equals() is used for strong references and identity equality is used for weak and soft references.

See softKeys, weakKeys, softValues, weakValues.

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