Clear Java cache - Mac OS X
- Click on the “Finder” icon located in your dock.
- Click “Applications”, and then click the “Utilities” Folder.
- Double-click the “Java Preferences” icon.
- Click on the tab labeled “Network” and then click the button labeled “Delete Files…”.
- Ensure that both check boxes are checked and then click the “OK” button.
n.b., instructions borrowed from http://www.bu.edu/tech/web/course-sites/blackboard-vista/how-to/clear-java-cache/mac/