<i18n dev> RFR: 8364365: HKSCS encoder does not properly set the replacement character [v2]

[Xueming Shen]

On Thu, 7 Aug 2025 15:07:08 GMT, Volkan Yazici <vyazici at openjdk.org> wrote:

>> Fix `HKSCS` encoder to correctly set the replacement character, and add tests to verify the `CodingErrorAction.REPLACE` behavior of all available encoders.
>
> Volkan Yazici has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Improve double-`char` unmappable search
>  - Improve single-`char` unmappable search

test/jdk/sun/nio/cs/TestEncoderReplaceLatin1.java line 251:

> 249:             sb.append("%sU+%04X".formatted(i > 0 ? ", " : "", (int) c));
> 250:         }
> 251:         return sb.append(']').toString();

just for fun :-)

return IntStream.range(0, cs.length)
                            .mapToObj(i -> String.format("U+%04X", (int) cs[i]))
                            .collect(Collectors.joining(", ", "[", "]"));

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PR Review Comment: https://git.openjdk.org/jdk/pull/26635#discussion_r2261207568