hg: jdk9/dev/jdk: 8145981: (fs) LinuxWatchService can reports events against wrong directory

[alan.bateman at oracle.com]

Changeset: f9919c0e0a18
Author:    sebastian
Date:      2015-12-30 19:20 +0100
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/f9919c0e0a18

8145981: (fs) LinuxWatchService can reports events against wrong directory
Summary: Fixes wakeup mechanism of LinuxWatchService and introduces a test
Reviewed-by: alanb

! src/java.base/linux/classes/sun/nio/fs/LinuxWatchService.java
+ test/java/nio/file/WatchService/UpdateInterference.java