How to upgrade from java6 to java7 on 10.04?

Jim Byrnes jf_byrnes at
Thu Aug 16 17:34:29 UTC 2012

Firefox popped up a warning yesterday that Java6 had security problems 
and should be upgraded to Java7. I googled upgrading to Java7 and found 
various answers ranging from giving step by step manual instructions to 
recommending using ppa/webup8.

My concern is they all seemed to focus on installing Java7 but I didn't 
see anything about upgrading.  What happens to my Java6 installation?
Just looking for a smooth, hassle free way to get secure java running again.

Thanks,  Jim

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