On Wed, 21 Oct 2026 01:39:57 GMT, Leonid Mesnik <[email protected]> wrote:

>> The SampledObjectAlloc event is called before object is cloned. It might 
>> potentially cause the issues because Clone() implementation might rely on 
>> the fact that object is not updated before creation an updating by clone. 
>> 
>> The proposed fix is to call SampledObjectAlloc after clone is completed like 
>> it is done for VMObjectAlloc. Thus clone is atomic and can't be interrupted 
>> by Java code.
>> 
>> The JVMTI specification is not specific to the exact time when the event is 
>> called. 
>> 
>> 
>> ---------
>> - [x] I confirm that I make this contribution in accordance with the 
>> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).
>
> Leonid Mesnik has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   the fix

In the current code where is the event generated? I don't see how the change 
here moves the event generation site.

I also wonder whether there could be any compatibility implications with this 
change in behaviour?

-------------

PR Comment: https://git.openjdk.org/jdk/pull/33483#issuecomment-6326095174
PR Comment: https://git.openjdk.org/jdk/pull/33483#issuecomment-6326110204

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