RFR: JDK-8306860: Avoid unnecessary allocation in List.map() when list is empty

[Archie Cobbs]

On Mon, 24 Apr 2023 14:18:43 GMT, Christoph Dreis <duke at openjdk.org> wrote:

> Would you be willing to sponsor this change by any chance?

Yes except I'm a project "author" not a "committer" so can't do that yet.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13407#discussion_r1175404506