To clear the Java cache, open the Java control panel, which you can find in the Windows Control Panel or in System Preferences on a Mac. You can also try deleting the temporary internet files ...

BR><BR>C WINDOWS\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\jar<BR><BR>Presently it is full of different .zip and matching .idx files.<BR><BR>I am assuming they are downloaded/cached ...