RFR: 8355726: LinkedBlockingDeque fixes and improvements

[Doug Lea]

On Mon, 9 Jun 2025 09:24:57 GMT, Viktor Klang <vklang at openjdk.org> wrote:

>>> We could likely check if there's any remaining capacity up front, and immediately return false?
>> 
>> We could if you like. I wanted to make as few changes as possible, to not introduce unexpected changes. This particular bug was to stop a size overflow.
>
> @DougLea What do you think about checking if the target collection is likely going to fit into the queue early?

Because of races, prechecks can't  be exactly accurate, but I think Heinz's current approach is a good choice, and is similar to how it's done elsewhere.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24925#discussion_r2135512775