RFR: 8301991: Convert l10n properties resource bundles to UTF-8 native [v5]

[Naoto Sato]

On Fri, 17 Mar 2023 22:27:48 GMT, Justin Lu <jlu at openjdk.org> wrote:

>> This PR converts Unicode sequences to UTF-8 native in .properties file. (Excluding the Unicode space and tab sequence). The conversion was done using native2ascii.
>> 
>> In addition, the build logic is adjusted to support reading in the .properties files as UTF-8 during the conversion from .properties file to .java ListResourceBundle file.
>
> Justin Lu has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Close streams when finished loading into props

Hmm, I just wonder why they are sticking to ISO-8859-1 as the default. I know j.u.Properties defaults to 8859-1, but PropertyResourceBundle, which is their primary use defaults to UTF-8 since JDK9 (https://openjdk.org/jeps/226)

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PR Comment: https://git.openjdk.org/jdk/pull/12726#issuecomment-1492682703