[crac] Withdrawn: Linux file system watcher support

[joeylee]

On Sun, 14 May 2023 03:49:38 GMT, joeylee <duke at openjdk.org> wrote:

> `inotify` monitors changes on filesystem, this support automatic restore for LinuxFileWatcher.
> 
> FileWatcherAfterRestoreTest verifies watcher service works after restore.
> FileWatcherTest verifies automatic closing inotiify fd
> 
> The watcher keys are still managed by user, so exception will be thrown if no watcher keys are leaked, as in FileWatcherWithOpenKeysTest

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/crac/pull/71