You can download the required Java right from Apple's support website. Simply install this version of Java and Minecraft will run normally on Yosemite. http://support.apple.com/kb/DL1572
Minecraft will run fine on java 8. It's most likely just not aware of the fact that you updated java, and thus is looking for a version of java that doesn't exist anymore. To fix this, click on edit profile. Then, at the bottom, check the box that says "executable", and replace everything in the box next to it with this:
How can I fix this? Nothing has changed other than that and it was working before the upgrade.
Please help!
THanks!
I made my own shader pack, by the way.
Builderb0y: How can I edit my profile if I can't open the minecraft window? Is there a workaround?
I tried the fix on this page but it doesn't seem to have made a difference:
http://support.apple.com/en-us/HT202643
http://www.minecraftforum.net/forums/support/unmodified-minecraft-client/2256752-tutorial-how-to-run-minecraft-in-os-x-yosemite