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The issue will probably be solved this year with value types in Java. https://openjdk.org/jeps/8277163, https://www.baeldung.com/java-valhalla-project, https://blogs.oracle.com/javamagazine/post/java-jdk-18-evolu...

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Can they go back and change Option though? Will we get a separate ValueOption type? This could get messy.

As far as I remember from a post of Brian Goetz changing the existing Optional type is exactly the plan! So, Optional will become a zero-cost abstraction™ in Java.

https://cr.openjdk.org/~briangoetz/valhalla/sov/02-object-mo...

Optional and some other classes have a warning "This is a value-based class; ..." in the documentation (since Java 8 - see https://docs.oracle.com/javase/8/docs/api/java/util/Optional...). So it is documented that the way Optional is working might change in the future.

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