RFR: 8355726: LinkedBlockingDeque fixes and improvements

[kabutz]

On Mon, 28 Apr 2025 19:48:40 GMT, Viktor Klang <vklang at openjdk.org> wrote:

>> @viktorklang-ora @DougLea @AlanBateman
>
> @kabutz Thanks for opening this PR—just confirming that it's on my to-review queue.

@viktorklang-ora any idea whom else we can ask to approve this PR?

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PR Comment: https://git.openjdk.org/jdk/pull/24925#issuecomment-2858077986