RFR: 8292279: (fs) Use try-with-resources to release NativeBuffer [v2]

[Alan Bateman]

On Mon, 15 Aug 2022 08:18:38 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

>> Since [JDK-8260966](https://bugs.openjdk.org/browse/JDK-8260966), NativeBuffer implements AutoCloseable interface.
>> Now we can use try-with-resources statements to simplify code.
>
> Andrey Turbanov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8292279: (fs) Use try-with-resources to release NativeBuffer
>   
>   apply Alan's suggestion

Marked as reviewed by alanb (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/9794