Github user ivmaykov commented on the issue:
https://github.com/apache/zookeeper/pull/680
@anmolnar I just stumbled across the FileMonitor class, which has similar
functionality to my FileChangeWatcher. The main difference is that it polls for
changes and sleeps the thread in between, rather than using WatchService. It
also ignores mtime changes if the file contents have not changed. Maybe I
should use FileMonitor and remove the FileChangeWatcher class?---
