[WARNING] Quiet Time is too low for non-native WatchService [sun.nio.fs.Pol

Vaadin 6 / 7 / 8
1

When I run a Vaadin 8.1 alpha 3 app built from the suggested Maven archetype, and run with the built-in jetty:run Maven action, the app runs but the last two lines of the console output concern me.

Googling led me to
this Stack Overflow page
, but still not a clear explanation.

After a line reading “Started Jetty Server” I get these two lines:

[INFO]
 Using Non-Native Java sun.nio.fs.PollingWatchService
[WARNING]
 Quiet Time is too low for non-native WatchService [sun.nio.fs.PollingWatchService]
: 1000 < 5000 ms (defaulting to 5000 ms)