On Thu, 4 Sep 2025 21:17:32 GMT, Roger Riggs <rri...@openjdk.org> wrote:

>> Kieran Farrell has updated the pull request incrementally with one 
>> additional commit since the last revision:
>> 
>>   update <strong> note to @api note
>
> test/jdk/java/util/UUID/UUIDTest.java line 52:
> 
>> 50:         unixEpochTimeMillisTest();
>> 51:         unixEpochTimeMillisTest_Multi();
>> 52:         unixEpochTimeMillis_userInputTest();
> 
> Also rename the tests to use the `epochMillis` naming.

Thanks Roger, I have updated the name accordingly. WRT updating the 
implementation to use nextLong(), since we are no longer using the higher 
percision bits in the first half of the UUID, we are using random bits in their 
place, so we would need to call `nextLong` twice and overwrite with the 
timestamp etc. if I understand correctly. From what ive seen in the 
microbenchmarks, this results in a large perfomance dec.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25303#discussion_r2337765286

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