On Thu, 9 Feb 2023 16:20:31 GMT, Tingjun Yuan <d...@openjdk.org> wrote:
> Currently, the two subclasses of `java.util.EnumSet` optimize bulk operations > when the argument is also a `EnumSet`, but there is no such optimization for > wrapper sets (returned by `Collections.unmodifiableSet`, > `Collections.synchronizedSet`, etc.) and immutable sets (returned by `Set.of` > methods) of `Enum`s. > > This PR introduces optimization classes for these situations. No public APIs > are changed. This pull request has been closed without being integrated. ------------- PR: https://git.openjdk.org/jdk/pull/12498
