<i18n dev> RFR: 8337077: Java uses wrong Charset in System.out when running on MINGW

[Rostislav Krasny]

On Sat, 24 Aug 2024 at 03:02, Naoto Sato <naoto.sato at oracle.com> wrote:

>
> I am sorry but initializing Java runtime by checking if an application's
> own DLL is loaded or not is something the Java runtime should not do.
>

Could you explain what is wrong in checking that the parent process has
some specified DLL loaded, during initialization of Java runtime? I suppose
the initialization of Java runtime has many other much more sophisticated
things to do.


> That won't even work with Cygwin, or other Unix like shells.


It will definitely work with Cygwin as well as with MSYS2. You just need to
check for the cygwin1.dll in addition to the msys-2.0.dll check.


> The only
> option I would see is again check the POSIX environment variables
> (regardless of the shell) and use it, but I don't think that is a viable
> option as I wrote in the previous email.
>

The POSIX LC_CTYPE environment variable is always available in MSYS2 and
Cygwin environments. The only thing that should be done before working with
the LC_CTYPE environment variable on Windows is checking that Java runtime
is running under MSYS2 or Cygwin. To do that I offered checking that either
msys-2.0.dll or cygwin1.dll is loaded by the parent process of the Java
runtime.

So I still don't understand why this JDK-8337077 bug could not be fixed
properly. The proposed fix is relatively simple.
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