RFR: 8354522: Clones of DecimalFormat cause interferences when used concurrently [v4]

[Naoto Sato]

On Tue, 15 Apr 2025 21:47:49 GMT, Johannes Graham <duke at openjdk.org> wrote:

>> Ah, ok then. Thanks.
>
> Ok to leave as is? Or is the AtomicBoolean more clear?

Ok to use it as a failure indicator (still I'd suggest breaking immediately after printing error)

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PR Review Comment: https://git.openjdk.org/jdk/pull/24598#discussion_r2045607522