Maxwell’s Demon wrote:
Ummm...I just noticed your reference to "MRT." It took me a little while to realize that it's an abbreviation for "Malware Removal Tool." Is "MRT" a standard acronym?
For sure MRT is the name of the process that Apple runs during the check and remove process, but to the best of my knowledge, they have never said that it stands for Malware Removal Tool. It has been widely assumed by some users and the media.
Also, since Java is not, by default, installed in Lion, that suggests that Apple feels that it's both an unnecessary and perhaps undesirable piece of software. If so, why doesn't Apple simply say so, and recommend that SL users (such as myself) uninstall it from their systems? (And if so, where is it located—I can't find it in my apps and utilities folders—and how does one uninstall it?)
I think it was probably based more on the transition of responsibility from Apple to Oracle that it wasn't included in Lion, but it could well be a little of both.
As noondaywitch indicated, it's a PITA to remove, although I have started seeing some advise on how to do that, they aren't consistent in what they say and I don't feel comfortable recommending things that I haven't tested. To me turning it off accomplishes the same thing, except freeing up space on the Hard Drive and it also guards against having to re-install it if and when you find you need it for something.