RFR: 8359110: Log accumulated GC and process CPU time upon VM exit [v19]

[Jonas Norlinder]

On Thu, 3 Jul 2025 10:34:27 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Jonas Norlinder has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Remove friend class in CPUTimeCounters
>
> src/hotspot/share/gc/shared/vmThreadCpuTimeScope.hpp line 37:
> 
>> 35:   bool    _enabled;
>> 36:   bool    _is_gc_operation;
>> 37:   Thread* _thread;
> 
> If this class is solely for vmthread, I guess using the more concrete type `VMThread` here seems more explicit.

OK, was storing it as `Thread` as it is only needed for `os::thread_cpu_time`. But now that we have renamed the class to something more specific it makes sense to be more explicit here.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25779#discussion_r2182487230