On Tue, 1 Jul 2025 15:20:07 GMT, Jaikiran Pai <j...@openjdk.org> wrote:
>> The uniqueness comes not just from the timestamp but also from the random >> data in the other bytes that are generated for each new UUID. > > Hello Roger, that's true about the uniqueness semantics. However, from what I > understand of RFC-9562, on which this new API is based, it has much stricter > expectations about monotonocity (the first 48 bits) too. For example, the > following sections: > > https://www.rfc-editor.org/rfc/rfc9562.html#name-timestamp-considerations > https://www.rfc-editor.org/rfc/rfc9562.html#name-monotonicity-and-counters This method ensures monotonicity, at the cost of potentially returning a time stamp in the future if the system clock has been moved back by NTP. Not sure if that's an issue or not - but it's certainly a tradeoff. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/25303#discussion_r2177889997
