user-7535d
Comments
If you have Razer Synapse installed for a Razer mouse and/or Keyboard,it will add a invisible _JAVA_OPTIONS variable to your environment variables. (It's a bug in the Razer Synapse.)
This was the problem for me.
If you have that software either uninstall it or add _JAVA_OPTIONS with the -Xmx flag you want.
Better explanation: Jumping over a carpet block and having your lower body pass through the air part of the carpet block causes the sound of landing on wool.
Still a concern in 14w21b.
It's easy to replicate just place down one carpet and jump over it a couple of times.
Added a 14w18a screenshot of the bug
I just found this in my new survival world on 1.7.5. (Seed: 1051732723, South/West of spawn island.) There is gravel at the seabed with mineshaft tunnels right below that.
When I was exploring the mineshaft I found that the roof was mostly gravel so maybe that has something to do with it.
Images:
http://imgur.com/ELRAOtF
http://imgur.com/myEC1o6
http://imgur.com/w0DFXgf
http://imgur.com/hnULgJy
http://imgur.com/HKnVkDj
Works for me in pre5