RFR: 8258015: [JVMCI] JVMCI_lock shouldn't be held while initializing box classes

[Doug Simon]

On Thu, 10 Dec 2020 09:26:10 GMT, Jie Fu <jiefu at openjdk.org> wrote:

>> src/hotspot/share/jvmci/jvmci.cpp line 133:
>> 
>>> 131:     return;
>>> 132:   }
>>> 133:   MutexLocker locker(JVMCI_lock);
>> 
>> This lock is required in the case where this is not called from `AOTLoader::initialize_box_caches` to ensure only one JVMCI compiler thread does the lazy initialization.
>> I can fix this if you'd like me to put up a separate PR.
>
> OK. Please feel free to do so.
> Thanks.

I've opened https://github.com/openjdk/jdk/pull/1730.

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PR: https://git.openjdk.java.net/jdk/pull/1727