On Fri, 5 Mar 2021 18:53:29 GMT, Claes Redestad <redes...@openjdk.org> wrote:
>> This patch refactors Locale.getDefault(Category) so that the volatile field
>> holding the Locale is typically only read once. This has a small performance
>> advantage, and might be more robust if initialization is racy.
>
> Claes Redestad has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Fix omitted synchronized
src/java.base/share/classes/java/util/Locale.java line 946:
> 944: Locale loc = defaultDisplayLocale; // volatile read
> 945: if (loc == null) {
> 946: loc = getDisplayLocale();
Just interesting how did you check that the performance difference is because
of volatile read, and not because of replacing of the switch by the "if"?
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PR: https://git.openjdk.java.net/jdk/pull/2845
