RFR: 8272586: emit abstract machine code in hs-err logs [v2]

[Vladimir Kozlov]

On Wed, 6 Oct 2021 16:25:50 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

>> src/hotspot/share/utilities/vmError.cpp line 324:
>> 
>>> 322:   // non-walkable C frame. Use frame.sender() for java frames.
>>> 323:   frame invalid;
>>> 324:   if (t && t->is_Java_thread()) {
>> 
>> use `(t != nullptr)` explicitly
>
> Will do.
> BTW, I've never seen `nullptr` before - where is it defined?

We start using C++ features:
https://github.com/openjdk/jdk/blob/master/doc/hotspot-style.md#nullptr

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PR: https://git.openjdk.java.net/jdk/pull/5446