<i18n dev> RFR: 8274544: Langtools command's usage were garbled on Japanese Windows [v5]

[Naoto Sato]

On Mon, 1 Nov 2021 16:10:26 GMT, Ichiroh Takiguchi <itakiguchi at openjdk.org> wrote:

>> JEP-400 (UTF-8 by Default) was eabled on JDK18-b13.
>> After JDK18-b13, javac and some other langtool command's usage were garbled on Japanese Windows.
>> These commands use PrintWriter instead of standard out/err with PrintStream.
>
> Ichiroh Takiguchi has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits:
> 
>  - 8274544: Langtools command's usage were garbled on Japanese Windows
>  - 8274544: Langtools command's usage were garbled on Japanese Windows
>  - 8274544: Langtools command's usage were garbled on Japanese Windows
>  - 8274544: Langtools command's usage were garbled on Japanese Windows
>  - Langtools command's usage were grabled on Japanese Windows

The gist of the issue is that `PrintWriter` (w/o explicit charset) uses the default charset, ignoring `PrintStream`'s charset. So  it basically is irrelevant of JEP400, but apparently, JEP400 made it visible as it keeps the System.out/err encoding in `native.encoding` while changing the default to `UTF-8`.
I am now in the process of creating a PR for the issue JDK-8276970, and will submit it shortly.

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PR: https://git.openjdk.java.net/jdk/pull/5771