RFR: 8319447: Improve performance of delayed task handling [v13]

[Doug Lea]

On Thu, 27 Mar 2025 13:27:30 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Personally I think it's worth it. @AlanBateman, what do you think?
>
> Right now it's hard to envisage needing to have >2B delayed tasks queued. Maybe in a few years we might regret this. So maybe better to change it to return long, I re-generate API diffs easily.

OK. Changed to long. @AlanBateman could you regenerate specdiff after I commit?

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PR Review Comment: https://git.openjdk.org/jdk/pull/23702#discussion_r2017246421