<i18n dev> RFR: 8333396: Performance regression of DecimalFormat.format [v8]

[Justin Lu]

On Wed, 19 Jun 2024 02:05:28 GMT, lingjun-cg <duke at openjdk.org> wrote:

> It requires append(int), but the Appendable has no such method.

If via `Appendable` we don't have access to `append(int)`, can we simply `append(String.valueOf(int))`.
And similarly for `append(char[], int, int)`, can we `append(String.valueOf(char[], int, int))`.

According to the method descriptions in `AbstractStringBuilder`, this should behaviorally be the same.
That way we don't have to add any new classes, and can continue with the generic implementation.

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PR Comment: https://git.openjdk.org/jdk/pull/19513#issuecomment-2181620101