PROBLEM-I have to original MacBook laptop and I recently upgraded form snow leopard to mountain lion. My Minecraft takes 20 or more minutes to open and it is the same for everything else java related, I can't even open java preferences. The only help I could find was for the error message (fixed that without any help), although I didn't get that same error message I got a message telling me it was blocked in system preferences so I fixed that.
Can anyone help me?
SOLUTION-The problem was I had java version 7 update 9 when I should have had update 10. I went to the Java website and went to help, messed around clicking URLs and a box came up saying there was a newer version of java available for download so I clicked download and installed it and Minecraft runs fine.