Thanks Sato-san!

I added noreg-hard to JBS.

Can I get reviewer(s) from HotSpot folks?
This webrev changes HotSpot code (os_windows.cpp).


Yasumasa


On 2020/04/11 2:17, [email protected] wrote:
Suenaga-san,

Looks good to me. Please add noreg-hard if you are not planning to provide test 
cases. Thank you for fixing this issue.

Naoto

On 4/10/20 7:29 AM, Yasumasa Suenaga wrote:
Hi all,

Please review this change:

   JBS: https://bugs.openjdk.java.net/browse/JDK-8242283
   webrev: http://cr.openjdk.java.net/~ysuenaga/JDK-8242283/webrev.00/

After JDK-8240197 and JDK-8240725, java cannot start when java home path 
includes non-ASCII character e.g. Japanese Kanji.
We've discussed about this issue on JBS, and we decide to replace CP_THREAD_ACP 
to CP_ACP in MultiByteToWideChar() because CP_ACP works nicely rather than 
CP_THREAD_ACP.

But this change would not resolve in all cases. For example, Japanese encoded 
pathname cannot be recognized under the English system locale. It is 
(implicitly) described in the spec for JNI_CreateJavaVM().

https://docs.oracle.com/en/java/javase/14/docs/specs/jni/invocation.html#jni_createjavavm:
```
     char *optionString; /* the option as a string in the default platform 
encoding */
```


Thanks,

Yasumasa

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