The MAAddressBookJSPProvider JSPs are located in /var/opt/SUNWportal/portals/<portal_id>/desktop/default/MAAddressBookJSPProvider/html directory.
The JSPs available in the html subdirectory under MAAddressBookJSPProvider and their functionality are:
Allows editing of mobile address book application preferences. Used for Mobile Access application.
Persists changes to application preferences. Used for Mobile Access application.