RFR: 8339725: Concurrent GC crashed due to GetMethodDeclaringClass [v2]
David Holmes
dholmes at openjdk.org
Mon Sep 9 23:27:05 UTC 2024
On Mon, 9 Sep 2024 06:04:36 GMT, Liang Mao <lmao at openjdk.org> wrote:
>> Hi,
>>
>> It's a fix for 8339725. I think getting the oop from Klass::java_mirror() should use a ON_PHANTOM_OOP_REF decorator here which could make sure the oop would be kept alive in concurrent marking and return nullptr while in concurrent reference processing and unloading.
>>
>> test/hotspot/jtreg/runtime and gc are clean.
>>
>> Thanks,
>> Liang
>
> Liang Mao has updated the pull request incrementally with one additional commit since the last revision:
>
> Fix build error in windows/mac
Maybe I'm misunderstanding the test case but isn't it using a jMethodID for a class that may have been unloaded?
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PR Comment: https://git.openjdk.org/jdk/pull/20907#issuecomment-2339321221
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