JNotify - Java library that allows java application to listen to file system events

JNotify works on both Windows (Windows 2000, XP, Vista) and Linux with INotify support (Kernel 2.6.14 and above).

JNotify is a java library that allow java application to listen to file system events, such as:
file created.
file modified.
file renamed.
file deleted.
This property can be used in a number of scenarios.I have used it to reload resource bundles
whenever there is a modiofication in it.
Reference:
http://jnotify.sourceforge.net/