RFR: 8361103: java_lang_Thread::async_get_stack_trace does not properly protect JavaThread [v2]

[David Holmes]

On Mon, 7 Jul 2025 19:36:36 GMT, Alex Menkov <amenkov at openjdk.org> wrote:

>> src/hotspot/share/classfile/javaClasses.cpp line 1896:
>> 
>>> 1894:       return nullptr;
>>> 1895:     }
>>> 1896:     java_thread = java_lang_Thread::thread(carrier_thread);
>> 
>> Won't `java_thread` already have been set correctly by `cv_internal_thread_to_JavaThread`?
>
> No. This is for virtual thread. We need to get JavaThread from the carrier

Got it.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26119#discussion_r2191284693