On Tue, 20 May 2025 21:53:21 GMT, Shaojin Wen <s...@openjdk.org> wrote:
>> src/java.base/share/classes/java/util/UUID.java line 528:
>>
>>> 526: * <pre>
>>> 527: * Input: 0x0123456789ABCDEF
>>> 528: * Output: 0x3031323334353637 ('0','1','2','3','4','5','6','7' in
>>> ASCII)
>>
>> Only the low 32 bits are used, the example only needs to show the input ox
>> 0x0123457.
>> Or change the signature to accept an `int`.
>
> Because the input of Long.expand is long, if the parameter is int, it will
> cause a redundant conversion process of long -> int -> long.
I think the issue is just the example input and output should be something like:
Input: 0xABCDEF01
Output: 0x3130666564636261
to demonstrate that it is the low-order bits that are used, as well as that the
digit order is reversed in the result.
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PR Review Comment: https://git.openjdk.org/jdk/pull/22928#discussion_r2099071960
