Problem exists for Java 8u25 (the latest version) on Yosemite (10.10)
Can Confirm I placed a birch door and broke it and got an oak door back
Facing into the wall at a diagonal I'm unable to move up the stairs
if I jump I will go up one stair block then get stuck on the next one up
When I read MC-61245 it doesn't sound like this
image of what I'm doing (I'm pushing forward but am unable to move)
https://dl.dropboxusercontent.com/u/19910871/2014-07-31_17.50.57.png
Confirmed, I've had what sounds like up to 3-4 tracks playing at once. It makes hearing all the new music impossible.
Minecraft can still be run through the terminal by entering the commands
cd /Applications
then
java -d64 -Xmx1024M -jar Minecraft.app/Contents/Resources/Java/Bootstrap.jar