Note: This method does not require Pacifist and/ or modification of the installation package in any other way.ĭisclaimer: This works on Mac OS X 10.3.9. If you’ve managed to screw up your existing Java installation on Mac OS X, or you’re looking to downgrade for reason(s) best know to you, here’s a nice and easy way of preventing Mac OS X from telling you it knows best ((The “installer cannot run on this machine because it does not have…” messages)).