RFR: JDK-8310502 : Optimization for j.l.Long.fastUUID() [v24]

[Roger Riggs]

On Mon, 26 Jun 2023 09:52:10 GMT, 温绍锦 <duke at openjdk.org> wrote:

>> src/java.base/share/classes/java/util/UUID.java line 515:
>> 
>>> 513: 
>>> 514:         try {
>>> 515:             return jla.newStringNoRepl(buf, StandardCharsets.ISO_8859_1);
>> 
>> in java.base it's better to use `ISO_8859_1.INSTANCE` directly instead of `StandardCharsets.ISO_8859_1`.
>> See [JDK-8234147](https://bugs.openjdk.org/browse/JDK-8234147)
>
> done

I don't see that it is better and it is unnecessarily spreading around parts of the implementation of charsets that can use the public API.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14578#discussion_r1242307186