PollingWatchService possible issue

Alan Snyder fishgarage at cbfiddle.com
Sun Dec 4 20:50:15 UTC 2016

I notice that PollingWatchService never checks the file key when it reads a directory to see if it is reading from the same directory that it started with.

I suspect that creates a potential for incorrect behavior if the directory tree is rearranged (between polls) so that the original path accesses a different directory.

Specifically, if the original directory remains available via some other path, then someone watching on that path or trying to register using that path will be using a watch service that is reading the wrong directory.

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