---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 12/27/13 12:13 PM
Description: Exception ticking world

java.lang.IllegalArgumentException: n must be positive
	at java.util.Random.nextInt(Unknown Source)
	at agr.a(SourceFile:122)
	at agr.a(SourceFile:27)
	at agl.a(SourceFile:364)
	at agw.a(SourceFile:138)
	at apq.a(SourceFile:432)
	at ml.a(SourceFile:160)
	at aoo.a(SourceFile:775)
	at ml.c(SourceFile:95)
	at ml.d(SourceFile:108)
	at afs.e(SourceFile:311)
	at mm.g(SourceFile:234)
	at mm.b(SourceFile:137)
	at net.minecraft.server.MinecraftServer.u(SourceFile:502)
	at net.minecraft.server.MinecraftServer.t(SourceFile:440)
	at btk.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:357)
	at lb.run(SourceFile:616)


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

-- Head --
Stacktrace:
	at java.util.Random.nextInt(Unknown Source)
	at agr.a(SourceFile:122)
	at agr.a(SourceFile:27)
	at agl.a(SourceFile:364)
	at agw.a(SourceFile:138)
	at apq.a(SourceFile:432)
	at ml.a(SourceFile:160)
	at aoo.a(SourceFile:775)
	at ml.c(SourceFile:95)
	at ml.d(SourceFile:108)
	at afs.e(SourceFile:311)
	at mm.g(SourceFile:234)
	at mm.b(SourceFile:137)

-- Affected level --
Details:
	Level name: SkyBlock1.1
	All players: 1 total; [mp['superexploding'/1255, l='SkyBlock1.1', x=26.48, y=67.17, z=-0.24]]
	Chunk stats: ServerChunkCache: 679 Drop: 0
	Level seed: 1435672245
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-3,65,0), Chunk: (at 13,4,0 in -1,0; contains blocks -16,0,0 to -1,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 1965482 game time, 1965482 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 22202 (now: false), thunder time: 43287 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.u(SourceFile:502)
	at net.minecraft.server.MinecraftServer.t(SourceFile:440)
	at btk.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:357)
	at lb.run(SourceFile:616)

-- System Details --
Details:
	Minecraft Version: 1.7.4
	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: 250730808 bytes (239 MB) / 452984832 bytes (432 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 4884 (273504 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1324 (74144 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [mp['superexploding'/1255, l='SkyBlock1.1', x=26.48, y=67.17, z=-0.24]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.