java.lang.NullPointerException at ur.f(SourceFile:129)

Minecraft has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem; Ticking memory connection

A full error report has been saved to /Users/rubiii/Library/Application Support/minecraft/crash-reports/crash-2013-02-09_21.31.25-server.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash :(



--- BEGIN ERROR REPORT 9166dc1 --------
Full report at:
/Users/rubiii/Library/Application Support/minecraft/crash-reports/crash-2013-02-09_21.31.25-server.txt
Please show that file to Mojang, NOT just this screen!

Generated 2/9/13 9:31 PM

-- System Details --
Details:
	Minecraft Version: 1.4.7
	Operating System: Mac OS X (x86_64) version 10.8.2
	Java Version: 1.6.0_37, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 329072816 bytes (313 MB) / 581435392 bytes (554 MB) up to 1065025536 bytes (1015 MB)
	JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms512M -Xmx1024M
	AABB Pool Size: 4691 (262696 bytes; 0 MB) allocated, 4413 (247128 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1064 (59584 bytes; 0 MB) allocated, 906 (50736 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['rubiiihh'/2924, l='Trying', x=44.78, y=67.00, z=29.41]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

java.lang.NullPointerException
	at ur.f(SourceFile:129)
	at ur.h(SourceFile:143)
	at qw.a(SourceFile:219)
	at px.c_(SourceFile:189)
	at qx.r(SourceFile:388)
	at qx.c(SourceFile:380)
	at md.j_(SourceFile:540)
	at qx.j_(SourceFile:200)
	at iq.g(SourceFile:175)
	at iv.a(SourceFile:199)
	at eb.a(SourceFile:136)
	at cf.b(SourceFile:55)
	at iv.d(SourceFile:57)
	at iw.b(SourceFile:39)
	at bec.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.r(SourceFile:762)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)
--- END ERROR REPORT f7ad503 ----------