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javanullvalue-typeproject-valhalla

Can null be assigned to or be compared to a value type variable?

In Java, there have always existed primitive types and references, but not value types.

One of the goals of Project Valhalla is to explore and incubate feature candidates such as value types.

I would like to know if null can be assigned to a value type variable, or if a value type variable can be compared to null.

If not, I would also like to know why.

Solution

  • From here: https://wiki.openjdk.java.net/display/valhalla/Minimal+Value+Types

    Value types are "immutable, identity-agnostic, non-nullable, non-synchronizable, final"

    So no, it can't be null