This is not bothering me, it's just a curiosity. When you close World of Minecraft down on the server list, why does it pop up "java.lang.NullException this program needs to close." every time? 

Is it a sign that there might be an error similar to the one where it kept updating in 1.5.9?

Or is it an error that needs to be fixed? (A bug)

That is all.

luigimario211, contributor. (Rank 2)