---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 13.03.14 17:45
Description: Exception ticking world

java.lang.IllegalArgumentException: n must be positive
	at java.util.Random.nextInt(Unknown Source)
	at alg.a(SourceFile:204)
	at alg.a(SourceFile:29)
	at akz.a(SourceFile:387)
	at all.a(SourceFile:138)
	at avt.a(SourceFile:443)
	at ny.a(SourceFile:175)
	at aup.a(SourceFile:843)
	at ny.c(SourceFile:104)
	at ny.d(SourceFile:117)
	at akh.b(SourceFile:271)
	at nz.h(SourceFile:271)
	at nz.c(SourceFile:162)
	at net.minecraft.server.MinecraftServer.w(SourceFile:539)
	at net.minecraft.server.MinecraftServer.v(SourceFile:481)
	at cek.v(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:397)
	at mq.run(SourceFile:667)


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 alg.a(SourceFile:204)
	at alg.a(SourceFile:29)
	at akz.a(SourceFile:387)
	at all.a(SourceFile:138)
	at avt.a(SourceFile:443)
	at ny.a(SourceFile:175)
	at aup.a(SourceFile:843)
	at ny.c(SourceFile:104)
	at ny.d(SourceFile:117)
	at akh.b(SourceFile:271)
	at nz.h(SourceFile:271)
	at nz.c(SourceFile:162)

-- Affected level --
Details:
	Level name: Himmelsdimension
	All players: 1 total; [oc['_money12_'/33, l='Himmelsdimension', x=-89,36, y=41,62, z=-64,04]]
	Chunk stats: ServerChunkCache: 481 Drop: 0
	Level seed: -9109559242279780328
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: -151,00,64,00,40,00 - World: (-151,64,40), Chunk: (at 9,4,8 in -10,2; contains blocks -160,0,32 to -145,255,47), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 6020 game time, 6020 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 109805 (now: false), thunder time: 72845 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.w(SourceFile:539)
	at net.minecraft.server.MinecraftServer.v(SourceFile:481)
	at cek.v(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:397)
	at mq.run(SourceFile:667)

-- System Details --
Details:
	Minecraft Version: 14w11a
	Operating System: Windows Vista (x86) version 6.0
	Java Version: 1.7.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 30347944 bytes (28 MB) / 136777728 bytes (130 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [oc['_money12_'/33, l='Himmelsdimension', x=-89,36, y=41,62, z=-64,04]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.