On Wed, 22 Mar 2023 01:22:37 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. > > Tingjun Yuan has updated the pull request incrementally with one additional > commit since the last revision: > > Fix a whitespace error I agree with Claes here in my skepticism of the usefulness of this sort of change. It seems like it's adding lots of complexity. In addition, it also seems like there's a lot of churn in the design. I'd suggest returning this PR to draft status until it can be determined that there's a clear, net improvement. ------------- PR Comment: https://git.openjdk.org/jdk/pull/12498#issuecomment-1479872159
