---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 21/12/12 2:38 PM
Description: Exception in server tick loop

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at net.minecraft.src.ii.a(Unknown Source)
	at net.minecraft.server.MinecraftServer.r(Unknown Source)
	at net.minecraft.server.MinecraftServer.q(Unknown Source)
	at net.minecraft.src.bdz.q(Unknown Source)
	at net.minecraft.server.MinecraftServer.run(Unknown Source)
	at net.minecraft.src.fy.run(Unknown Source)


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

-- System Details --
Details:
	Minecraft Version: 1.4.6
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_01, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 377236120 bytes (359 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -Xms512M -Xmx1024M
	AABB Pool Size: 4019 (225064 bytes; 0 MB) allocated, 3297 (184632 bytes; 0 MB) used
	Suspicious classes: $Proxy1, $Proxy2, $Proxy3, ...[com.q3hardcore.console.command.Loader, StandardCommand, MultipleCommands, ...], [com.q3hardcore.console.core.Helper, Console, CommandConsole, ...], [com.q3hardcore.console.plugin.Plugin, spc_bind, spc_enchant, ...], [com.q3hardcore.console.util.Settings, KeyListener, KeyboardHandler], [com.q3hardcore.console.waypoint.WaypointException], [com.q3hardcore.console.worldedit.LocalConfiguration, ConsoleServerInterface, ConsoleLocalPlayer, ...], [com.q3hardcore.console.wrapper.Entity, PlayerBase, Player, ...], [com.sk89q.minecraft.util.commands.CommandsManager, Injector, CommandException, ...], [com.sk89q.util.StringUtil], [com.sk89q.worldedit.ServerInterface, LocalConfiguration, LocalPlayer, ...], [com.sk89q.worldedit.blocks.TileEntityBlock, BaseBlock, SignBlock, ...], [com.sk89q.worldedit.commands.InsufficientArgumentsException, BiomeCommands, ChunkCommands, ...], [com.sk89q.worldedit.cui.CUIEvent, CUIRegion, SelectionShapeEvent], [com.sk89q.worldedit.data.DataException, ChunkStoreException, MissingWorldException], [com.sk89q.worldedit.expression.ExpressionException], [com.sk89q.worldedit.filtering.GaussianKernel], [com.sk89q.worldedit.foundation.NbtValued, Block, World], [com.sk89q.worldedit.masks.Mask], [com.sk89q.worldedit.patterns.Pattern], [com.sk89q.worldedit.regions.RegionSelector, RegionOperationException, CuboidRegionSelector, ...], [com.sk89q.worldedit.scripting.CraftScriptEngine], [com.sk89q.worldedit.snapshots.InvalidSnapshotException], [com.sk89q.worldedit.tools.Tool, BlockTool, SinglePickaxe], [com.sk89q.worldedit.tools.brushes.Brush], [com.sk89q.worldedit.util.PropertiesConfiguration], [net.minecraft.src.lg, ats, aul, ...]
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 7603 (425768 bytes; 0 MB) allocated, 1829 (102424 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['q3hardcore'/306, l='street', x=-135.41, y=73.00, z=159.46]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Very likely; Jar signature invalidated