RFR: 8195129: System.load() fails to load from unicode paths [v3]

[Maxim Kartashev]

On Tue, 1 Jun 2021 18:42:34 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> Maxim Kartashev has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Coding style-related corrections.
>>  - Corrected the test to use Platform.sharedLibraryExt()
>
> test/hotspot/jtreg/runtime/jni/loadLibraryUnicode/LoadLibraryUnicodeTest.java line 42:
> 
>> 40:         String nativePathSetting = "-Dtest.nativepath=" + getSystemProperty("test.nativepath");
>> 41:         ProcessBuilder pb = ProcessTools.createTestJvm(nativePathSetting, LoadLibraryUnicode.class.getName());
>> 42:         pb.environment().put("LC_ALL", "en_US.UTF-8");
> 
> Some environments/user configs may not have `UTF-8` codeset on the platform. May need to gracefully exit in such a case.

I added `java.nio.charset.Charset.isSupported("UTF-8")` check to the test. Hope that's enough for the environments without `UTF-8`.

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PR: https://git.openjdk.java.net/jdk/pull/4169