Issue:
Cannot update the Open JDK version using the Java Update feature in the About Box.
   
Product:
PowerChute Network Shutdown v4.3

Environment: 
PowerChute v4.3, Mac OSX

Solution:

To change the version of OpenJDK used by PowerChute after updating the JDK you must uninstall PowerChute and re-install after installing the required version of Open JDK.

NOTE: PowerChute Network Shutdown running on Mac OSX uses the system / pre-installed JDK. PowerChute for Mac OSX is not bundled with a JDK. For more information see the PowerChute installation guide attached.