RFR: 8293067: (fs) Implement WatchService using system library (macOS)

[Maxim Kartashev]

On Fri, 3 Feb 2023 12:01:55 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>>> Is there any chance this will be made available in some other way?
>> 
>> [JetBrains Runtime](https://github.com/JetBrains/JetBrainsRuntime) has FSEvents-based implementation of WatchService on macOS.
>
>> [JetBrains Runtime](https://github.com/JetBrains/JetBrainsRuntime) has FSEvents-based implementation of WatchService on macOS.
> 
> Is this similar to what was proposed here, I'm curious if the same issues were encountered when running the tests across a wider range of macOS releases.

@AlanBateman It is the implementation this one was based upon. No _known_ bugs exist there at this moment in time (tests were run on IntelliJ infrastructure, of course).

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PR: https://git.openjdk.org/jdk/pull/10140