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

Time: 11/12/14 2:58 AM
Description: Exception ticking world

java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
at java.util.ArrayList$Itr.next(Unknown Source)
at net.minecraft.world.World.func_72907_a(World.java:2928)
at net.minecraft.world.SpawnerAnimals.func_77192_a(SourceFile:73)
at net.minecraft.world.WorldServer.func_72835_b(SourceFile:182)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:708)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:617)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)
at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
at java.util.ArrayList$Itr.next(Unknown Source)
at net.minecraft.world.World.func_72907_a(World.java:2928)
at net.minecraft.world.SpawnerAnimals.func_77192_a(SourceFile:73)
at net.minecraft.world.WorldServer.func_72835_b(SourceFile:182)

-- Affected level --
Details:
Level name: 1.8
All players: 1 total; [EntityPlayerMP['Tobias2189'/254, l='1.8', x=-91.56, y=69.00, z=-254.14]]
Chunk stats: ServerChunkCache: 1033 Drop: 0
Level seed: -56257464281573589
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: -96.00,64.00,256.00 - World: (-96,64,256), Chunk: (at 0,4,0 in -6,16; contains blocks -96,0,256 to -81,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 989106 game time, 1490516 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 5928 (now: true), thunder time: 48307 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:708)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:617)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.8
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 269945584 bytes (257 MB) / 591323136 bytes (563 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 64, allocated: 13, tallocated: 95
FML: MCP v9.10 FML v8.0.9.1016 Optifine OptiFine_1.8_HD_U_A6 3 mods loaded, 3 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{8.0.9.1016} [Forge Mod Loader] (fml-1.8-8.0.9.1016-1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
vanillaenhanced{1.5} [Vanilla Enhanced] ([1.8]VanillaEnhanced-1.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [EntityPlayerMP['Tobias2189'/254, l='1.8', x=-91.56, y=69.00, z=-254.14]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml'