Clearing the Java Plug-in cache forces the browser to load the latest versions of web pages and programs.
Under Mac OS X, clearing the Java cache is a function of a separate application called "Java Prefences". You should use the Finder to locate this application and double-click on it to begin clearing Java cache.
1. Click on the Finder icon in the Dock to switch to the Finder (or use Alt+Tab to switch to the Finder).
2. Locate the Java Preferences application and launch it.
To locate the Java Preferences application, just type "java preferences" into the Spotlight file finder search field at the top of any Finder window. If your Finder doesn't currently have any Finder windows open, just double-click on your hard drive to open one.
Depending on the version of OS X's Java that you have installed, the location of this application may be any of the following:
Applications > Utilities > Java > J2SE 5.0 [or similar] > Java Preferences
Applications > Java Preferences
3. In the Java Preferences application, click the Network Tab, and click the button at the bottom that says Delete Files ... (the location of this button may be slightly different than that shown below, depending upon your version of Java).
4. Make sure all check boxes are selected with checkmarks. (Your set of checkboxes may look like either of the ones below, depending on the version of Java installed on your computer).
5. Click OK, and close the Java preferences window.