Sydney security expert Chris Gatford, of HackLabs, said Java was a "dying technology" and that from a security perspective it had been used by malware writers for quite some time to exploit computer systems.
He said it was a "highly recommended practice" to turn it off.
"So given that it's been around for a while and it has been used as a mechanism to exploit systems, I think it's good that [Apple] are thinking about turning things off that aren't needed," Mr Gatford said.
"This is a little bit of pain for perhaps a better security environment for the average home user because it's probably going to affect them most. It's going to be difficult, there's going to be pain. But ultimately it's better in the long term. But I imagine there's going to be some short term pain and a lot of people squealing.