RFR: 8295974: jni_FatalError and Xcheck:jni warnings should print the native stack when there are no Java frames [v2]

[Coleen Phillimore]

On Thu, 22 Dec 2022 21:08:06 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> test/hotspot/jtreg/runtime/jni/nativeStack/TestNativeStack.java line 65:
>> 
>>> 63:                                          "TestNativeStack$Main",
>>> 64:                                          "error");
>>> 65:         oa.reportDiagnosticSummary();
>> 
>> So this just prints out the stack trace but doesn't do a shouldContain or some verification of the elements?  I presume because this would be unreliable?  This seems ok, but just checking.  I think it's still worth having a regression test because this looked hard to write and if the stack in the messages do disappear, it'll save someone from having to rewrite this.
>
> Oh, that's much better!

And I see it doesn't create core dump, which is great.

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PR: https://git.openjdk.org/jdk/pull/11703