On Mon, 25 Oct 2021 23:21:02 GMT, Serguei Spitsyn <sspit...@openjdk.org> wrote:

>> Yes, I think that combining release_C_heap_structures and 
>> release_C_heap_structures_internal into single release_C_heap_structures 
>> with a default parameter will simplify code a little bit. But I'm not sure 
>> it is that important and would leave it for you to decide. :)
>
> I did not see the last comment from David when added mine. In fact, I like 
> the David's suggestion to call `ik->constants()->release_C_heap_structures()` 
> directly. It looks more simple to me.

I'd prefer that the callers do NOT release the constant pool CHeap structures 
directly.  The main caller, during class unloading has the InstanceKlass as a 
handle to delete and it would be really easy to miss the constant pool case.  
The constant pool is contained by the InstanceKlass in this case.  
Deallocate_contents is the only exception for the exceptional case where we 
have added the InstanceKlass to the deallocate list.

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PR: https://git.openjdk.java.net/jdk/pull/6105

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