---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 6/20/13 10:36 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at acb.a(SourceFile:69)
	at jo.b(SourceFile:113)
	at net.minecraft.server.MinecraftServer.t(SourceFile:462)
	at net.minecraft.server.MinecraftServer.s(SourceFile:405)
	at bke.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:339)
	at he.run(SourceFile:582)


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

-- Head --
Stacktrace:
	at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at acb.a(SourceFile:69)
	at jo.b(SourceFile:113)

-- Affected level --
Details:
	Level name: Seth & Mom's Survival World
	All players: 2 total; [jr['englebean'/3624113, l='Seth & Mom's Survival World', x=-239.57, y=66.00, z=-128.66], jr['racerman01'/3626006, l='Seth & Mom's Survival World', x=-251.37, y=10.00, z=-123.41]]
	Chunk stats: ServerChunkCache: 823 Drop: 0
	Level seed: 500
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-108,64,-52), Chunk: (at 4,4,12 in -7,-4; contains blocks -112,0,-64 to -97,255,-49), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 1270898 game time, 187417 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 89604 (now: false), thunder time: 24849 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.t(SourceFile:462)
	at net.minecraft.server.MinecraftServer.s(SourceFile:405)
	at bke.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:339)
	at he.run(SourceFile:582)

-- System Details --
Details:
	Minecraft Version: 13w25c
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_21, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 88491976 bytes (84 MB) / 419524608 bytes (400 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 5116 (286496 bytes; 0 MB) allocated, 10 (560 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 2634 (147504 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 2 / 8; [jr['englebean'/3624113, l='Seth & Mom's Survival World', x=-239.57, y=66.00, z=-128.66], jr['racerman01'/3626006, l='Seth & Mom's Survival World', x=-251.37, y=10.00, z=-123.41]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.