---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 1/24/14 5:02 AM
Description: Reading NBT data

java.lang.ClassCastException: ck cannot be cast to cj
	at by.d(SourceFile:120)
	at ye.c(SourceFile:128)
	at ye.a(SourceFile:75)
	at ud.b(SourceFile:360)
	at uf.a(SourceFile:579)
	at jv.a(SourceFile:82)
	at nn.f(SourceFile:1062)
	at alq.b(SourceFile:170)
	at hn.a(SourceFile:159)
	at hn.a(SourceFile:54)
	at blc.b(SourceFile:73)
	at net.minecraft.server.MinecraftServer.t(SourceFile:489)
	at net.minecraft.server.MinecraftServer.s(SourceFile:406)
	at bkz.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:340)
	at hi.run(SourceFile:583)


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

-- Corrupt NBT tag --
Details:
	Tag type found: STRING
	Tag type expected: SHORT
	Tag name: id
Stacktrace:
	at by.d(SourceFile:120)
	at ye.c(SourceFile:128)
	at ye.a(SourceFile:75)
	at ud.b(SourceFile:360)
	at uf.a(SourceFile:579)
	at jv.a(SourceFile:82)

-- Entity being loaded --
Details:
	Entity Type: null (jv)
	Entity ID: 216
	Entity Name: slayer_of_kokmo6
	Entity's Exact location: -324.30, 63.00, -69.34
	Entity's Block location: World: (-325,63,-70), Chunk: (at 11,3,10 in -21,-5; contains blocks -336,0,-80 to -321,255,-65), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Entity's Momentum: 0.00, -0.08, 0.00
Stacktrace:
	at nn.f(SourceFile:1062)
	at alq.b(SourceFile:170)
	at hn.a(SourceFile:159)
	at hn.a(SourceFile:54)
	at blc.b(SourceFile:73)
	at net.minecraft.server.MinecraftServer.t(SourceFile:489)
	at net.minecraft.server.MinecraftServer.s(SourceFile:406)
	at bkz.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:340)
	at hi.run(SourceFile:583)

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 75444512 bytes (71 MB) / 189792256 bytes (181 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 2666 (149296 bytes; 0 MB) allocated, 2666 (149296 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 18, tcache: 0, allocated: 3, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 306 (17136 bytes; 0 MB) allocated, 306 (17136 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.