I wasn't sure where to report this, so I chose support...

The new World of Minecraft client (version 1.6.6 in case it's no longer new) has many java.lang.NullPointerException's.  Note that this is primarily offline, or singleplayer (I have not encountered it in a server because WoMRealms appears offline right now).  The game screen has a red background with white letters, and the exact error message is as follows:

   Client Error
The game broke! [java.lang.NullPointerException]

Actions I have performed to effect these results:
+ Using any command in singleplayer
+ Typing any letters in the chat

I will post more when I come across them.

--Matt