---- Minecraft Crash Report ----
// Why did you do that?

Time: 27/04/14 8:55 PM
Description: Exception getting block type in world

java.lang.IllegalArgumentException: n must be positive
	at java.util.Random.nextInt(Unknown Source)
	at ayy.a(SourceFile:442)
	at od.a(SourceFile:175)
	at axr.a(SourceFile:859)
	at od.c(SourceFile:104)
	at od.d(SourceFile:117)
	at aky.b(SourceFile:289)
	at aky.f(SourceFile:284)
	at aky.c(SourceFile:220)
	at aky.d(SourceFile:235)
	at aky.b(SourceFile:201)
	at ayj.a(SourceFile:68)
	at oe.b(SourceFile:637)
	at oe.a(SourceFile:595)
	at cim.a(SourceFile:80)
	at cim.g(SourceFile:110)
	at net.minecraft.server.MinecraftServer.run(SourceFile:367)
	at mu.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 ayy.a(SourceFile:442)
	at od.a(SourceFile:175)
	at axr.a(SourceFile:859)
	at od.c(SourceFile:104)
	at od.d(SourceFile:117)
	at aky.b(SourceFile:289)
	at aky.f(SourceFile:284)

-- Requested block coordinates --
Details:
	Found chunk: true
	Location: World: (180,64,-61), Chunk: (at 4,4,3 in 11,-4; contains blocks 176,0,-64 to 191,255,-49), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Stacktrace:
	at aky.c(SourceFile:220)
	at aky.d(SourceFile:235)
	at aky.b(SourceFile:201)
	at ayj.a(SourceFile:68)
	at oe.b(SourceFile:637)

-- Affected level --
Details:
	Level name: World Gen Testing!
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 32 Drop: 0
	Level seed: -8932167699381302017
	Level generator: ID 04 - customized, ver 0. Features enabled: true
	Level generator options: {"coordinateScale":684.412,"heightScale":1099.4084,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":169.92958,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":247.42958,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":317.838,"baseSize":9.281691,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":113,"useCaves":false,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":1,"useLavaLakes":true,"lavaLakeChance":6,"useLavaOceans":true,"fixedBiome":13,"biomeSize":4,"riverSize":4,"dirtSize":33,"dirtCount":10,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":8,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":10,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":10,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":10,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":20,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":20,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":2,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":8,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":1,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":1,"lapisCenterHeight":16,"lapisSpread":16}
	Level spawn location: 0.00,0.00,0.00 - World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 0 game time, 0 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at oe.a(SourceFile:595)
	at cim.a(SourceFile:80)
	at cim.g(SourceFile:110)
	at net.minecraft.server.MinecraftServer.run(SourceFile:367)
	at mu.run(SourceFile:667)

-- System Details --
Details:
	Minecraft Version: 14w17a
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_55, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 308950168 bytes (294 MB) / 384303104 bytes (366 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 29, tallocated: 75
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.