RFR: 8364781: Re-examine DigitList digits resizing during parsing [v2]

[Justin Lu]

On Fri, 8 Aug 2025 23:28:48 GMT, Justin Lu <jlu at openjdk.org> wrote:

>> This PR changes the DigitList resizing from adding increments of 100 to a doubling resizing approach. This helps with performance of larger String values during `DecimalFormat` parsing. See the comment on the associated JBS issue for further detail.
>
> Justin Lu has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Chen review - replace with ArraysSupport

Thanks for the reviews.

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PR Comment: https://git.openjdk.org/jdk/pull/26705#issuecomment-3185711520