---- Minecraft Crash Report ----
// My bad.

Time: 1/13/13 1:17 PM
Description: Ticking memory connection

java.lang.IllegalStateException: Entity is already tracked!
	at ii.a(SourceFile:69)
	at ii.a(SourceFile:47)
	at ij.a(SourceFile:24)
	at yn.a(SourceFile:843)
	at in.a(SourceFile:610)
	at yn.d(SourceFile:835)
	at lv.a(SourceFile:1073)
	at pk.a(SourceFile:116)
	at mj.a(SourceFile:830)
	at mj.a(SourceFile:712)
	at pd.a(SourceFile:122)
	at rh.q(SourceFile:843)
	at iv.a(SourceFile:550)
	at dp.a(SourceFile:36)
	at cf.b(SourceFile:55)
	at iv.d(SourceFile:57)
	at iw.b(SourceFile:39)
	at bfg.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.r(SourceFile:763)
	at net.minecraft.server.MinecraftServer.q(SourceFile:680)
	at bfd.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:614)
	at fy.run(SourceFile:850)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 13w02b
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_07, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 349907224 bytes (333 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 8383 (469448 bytes; 0 MB) allocated, 8383 (469448 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1177 (65912 bytes; 0 MB) allocated, 1035 (57960 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['asoban'/216, l='Headstrong2', x=9.61, y=63.00, z=216.72]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.