JPrefs
Java Preferences Editor
...JPrefs visualizes all Java preferences of your computer in a tree. You can navigate through the tree similar to a file manager GUI and examine and edit all preferences. There are two trees available, user tree and system tree. Switching between them is simply easy by JPrefs menus or tool bar buttons. Also exporting and importing of preferences to and from XML files is supported by JPrefs as well.
JPrefs is written in Java and uses Java FX for its GUI. Packages for the common operating system Mac OS X, Windows and Linux are available.