---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 3/1/13 8:19 PM
Description: Ticking memory connection

java.lang.ClassCastException: aqc cannot be cast to aqa
	at amh.a(SourceFile:110)
	at jd.a(SourceFile:240)
	at jh.a(SourceFile:359)
	at fr.a(SourceFile:58)
	at ch.b(SourceFile:59)
	at jh.d(SourceFile:60)
	at jk.b(SourceFile:35)
	at bjd.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.r(SourceFile:480)
	at net.minecraft.server.MinecraftServer.q(SourceFile:397)
	at bja.q(SourceFile:122)
	at net.minecraft.server.MinecraftServer.run(SourceFile:331)
	at gp.run(SourceFile:573)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
	Minecraft Version: 13w09c
	Operating System: Mac OS X (i386) version 10.7.5
	Java Version: 1.6.0_41, Apple Inc.
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Apple Inc.
	Memory: 447690408 bytes (426 MB) / 550305792 bytes (524 MB) up to 1070399488 bytes (1020 MB)
	JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms512M -Xmx1024M
	AABB Pool Size: 5143 (288008 bytes; 0 MB) allocated, 5040 (282240 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: 1346 (75376 bytes; 0 MB) allocated, 1346 (75376 bytes; 0 MB) used
	Player Count: 1 / 8; [jc['The_Endgineer'/415, l='Lan with Mary: Cooperation', x=279.70, y=70.00, z=301.36]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.