On Tue, 15 Feb 2022 19:59:11 GMT, Mandy Chung <mch...@openjdk.org> wrote:
>> src/java.base/share/classes/jdk/internal/loader/NativeLibraries.java line
>> 427:
>>
>>> 425: new ConcurrentHashMap<>();
>>> 426:
>>> 427: static void acquireNativeLibraryLock(String libraryName) {
>>
>> Note sure about these two routines. Should they be shared? Should we have
>> two locks, one for JNI, one for raw? Of course, as is the code looks fine -
>> but I wonder if a single lock isn't overly strict.
>
> I initially planned to come back to this but I obviously forgot.
>
> This does not need the per-library locking for JNI library which avoids the
> deadlock due to the class and library loading scenarios involving JNI_OnLoad,
> class initialization, and `Sytem::loadLibrary`. I now removed the locking
> entirely as it uses the concurrent hash map to register/unregister the loaded
> libraries. Much simplified.
Thanks again for the feedback. This version is much cleaner.
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PR: https://git.openjdk.java.net/jdk/pull/7435
