On Wed, 19 Jun 2024 12:52:46 GMT, Alan Bateman <al...@openjdk.org> wrote:

>> @AlanBateman -- could you please take a look? Thanks.
>
>> @AlanBateman -- could you please take a look? Thanks.
> 
> There was a lot of heap analysis done a few years ago that shined a light on 
> the number of empty collections in a typical heap. I don't recall seeing 
> COWAL in any of the data but it seems plausible that there are cases where 
> there are a lot of empty COWAL instances in the heap.
> 
> Main thing for a change like this to make sure it doesn't hurt other cases 
> and check if there are overridable methods used in the existing + updated 
> implementations that might get reported as a behavior change by something 
> that extends and overrides some methods. I don't see anything so I think it's 
> okay.
> 
> One thing that surprises me is the change to remove(Object) to handle the 
> case where the last remaining element is removed. Does that help the 
> application that prompted this change? Part of me wonders if remove(int) 
> needs to do the same as someone will show up sometime to ask.

> @AlanBateman review please.

Yes, I think this is okay.

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PR Comment: https://git.openjdk.org/jdk/pull/19527#issuecomment-2288745837

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