[MC-46066] Minecraft crashes opening a world in snapshot

My minecraft worked with the snapshot but recently it has been crashing on any world i open but they open on 1.7.2.It's like level.dat has been restarted though because my whole inventory and all block NBT has been deleted. Crash Report attatched.

Linked issues

duplicates

MC-38527 Crash after changing max view distance to 20 chunks in options.txt / Render distance too high in options.txt after downgrading

Attachments

crash-2014-01-25_17.10.16-client.txt

Comments

fienxjox 2014-01-25T17:18:22Z

Duplicate of MC-45009 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.

Goolygong 2014-01-25T17:20:41Z

That wasnt the problem the problem was that all worlds crash for me instead of opening 14w04b

fienxjox 2014-01-25T17:24:17Z

You're using the 1.6 Java which is known to have issues with MC, especially newer versions. Update to the newest Oracle 1.7.0_51 java and see if it still happens.

The MC-45009 is related to why your inventory and other stuff was removed when re-opening your world.

Goolygong 2014-01-25T17:34:35Z

cheers ill try that

galaxy_2alex 2014-01-25T17:36:32Z

That's not how Java works on a Mac.
More information over here: MCL-1049
But, in any case, a small note for you:
Never. Switch. To. Older. Version.

Goolygong 2014-01-25T17:44:09Z

What is the problem then the older version bit was just extra info

Tails 2014-01-25T19:19:28Z

The crash is a dupe of MC-38527.