I think what you may have to do, then, is reload java onto your computer, that way java will reset your software options and seize control of these files from the ones they don't belong to.
Also, possibly you can check for java settings somewhere in your computer configuration and see if there's a way to force java to seize control that way.
Also, possibly you can check for java settings somewhere in your computer configuration and see if there's a way to force java to seize control that way.