Minecraft Forums

---- Minecraft Crash Report ----
// Oh - I know what I did wrong!
Time: 12/10/12 9:08 AM
Description: Exception in server tick loop
java.util.ConcurrentModificationException
at java.util.HashMap$Ha­erator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at ii.a(EntityTracker.java:202)
at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:680)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:587)
at bdo.q(IntegratedServer.java:110)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:494)
at fy.run(SourceFile:856)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- System Details --
Details:
Minecraft Version: 1.4.5
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.7.0_07, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1411124288 bytes (1345 MB) / 2122055680 bytes (2023 MB) up to 2122055680 bytes (2023 MB)
JVM Flags: 2 total; -Xms2048m -Xmx2048m
AABB Pool Size: 1706 (95536 bytes; 0 MB) allocated, 1103 (61768 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
FML: MCP v7.23 FML v4.5.2.459 Minecraft Forge 6.4.0.395 Optifine OptiFine_1.4.5_HD_U_D3 18 mods loaded, 18 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
mod_CodeChickenCore [CodeChicken Core] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
mod_NotEnoughItems [Not Enough Items] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
MoCreatures [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v4.2.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
mod_GuiAPI [mod_GuiAPI] (GuiAPI-0.15.1-1.4.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
mod_treecapitator [TreeCapitator] ([1.4.5]Treecapitator.ML.1.4.5.r01.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
mod_ReiMinimap [mod_ReiMinimap] ([1.4.5]ReiMinimap_v3.2_05.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
BuildCraft|Core [BuildCraft] (buildcraft-A-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
BuildCraft|Builders [BC Builders] (buildcraft-A-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
BuildCraft|Energy [BC Energy] (buildcraft-A-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
BuildCraft|Factory [BC Factory] (buildcraft-A-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
Railcraft [Railcraft] (Railcraft_6.8.0.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
BuildCraft|Transport [BC Transport] (buildcraft-A-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
BuildCraft|Silicon [BC Silicon] (buildcraft-A-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
ExtrabiomesXL [ExtrabiomesXL] (ExtrabiomesXL-universal-3.5.0b.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
Millenaire [Millénaire] (millenaire3.2.6.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 1151 (64456 bytes; 0 MB) allocated, 224 (12544 bytes; 0 MB) used
Player Count: 1 / 8; [iq['prjoker1'/581, l='millenaire end of days', x=-222.11, y=68.70, z=-137.02]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'forge,fml'