Minecraft Forums

Hello! I am having an issue with minecraft where i tend to crash within 20-60 mins of playing with this log that appears.

[spoiler]Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Exception in server tick loop
This error has been saved to C:\Users\user\AppData\Roaming\.minecraft\crash-reports\crash-2012-08-28_15.33.49-server.txt for your convenience. Please include a copy of this file if you report this crash to anyone.



--- BEGIN ERROR REPORT e99b9c8a --------
Generated 8/28/12 3:33 PM

- Minecraft Version: 1.3.2
- Operating System: Windows 7 (amd64) version 6.1
- Java Version: 1.7.0_06, Oracle Corporation
- Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 451460136 bytes (430 MB) / 1065484288 bytes (1016 MB) up to 1065484288 bytes (1016 MB)
- JVM Flags: 2 total; -Xms1024m -Xmx1024m
- FML: FML v3.0.159.339 Minecraft Forge 4.0.0.234 4 mods loaded, 4 mods active
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
CustomNpcs [Custom Npcs] (customnpcs 1.3.2 v0.6.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
Millenaire [Millénaire] (millenaire3.1.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available
- Is Modded: Definitely; 'forge,fml'
- Profiler Position: N/A (disabled)
- Player Count: 1 / 8; [gu['Amarux'/257, l='Millenare', x=-483.30, y=116.83, z=-148.23]]
- World Millenare Entities: 0 total; []
- World Millenare Players: 0 total; []
- World Millenare Chunk Stats: ServerChunkCache: 0 Drop: 0
- Type: Integrated Server

java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at gm.a(EntityTracker.java:190)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:618)
at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:547)
at axv.p(IntegratedServer.java:105)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)
at ep.run(SourceFile:539)
--- END ERROR REPORT 21fb0c98 ----------[ /spoiler]

I currently have optifine, millenaire, forge 234, and custom npc mod running. I installed optifine after these problems started so i dont think it is an issue. I am also using John Smith texture for version 1.3.2 but i switched to default and still got this error is i doubt this has anythign to do with it either.

Hopefuly you guys can understand this error log and tell me what i gotta do! Thanks!

It's a bug.
It's not clear from the crash if it is a bug in a mod or the game

thank you for the response! I updated to 3.1.1 so lets hope its fixed!

edit: it didnt help, seems like same error code

This same thing happened to me, excepts i was using Forge, Custom NPCs, Modloader, Optifine, and Toomanyitems. I tried 2 times, once with installing Modloader and Forge, and 1 with just Forge no Modloader. I'm pretty sure that it has something to do with Forge and Optifine, because i deleted the Custom NPCs mod. Whenever i try to connect to a server, it exits Minecraft while trying to connect and goes to my desktop with no error log. And when i play singleplayer it says "Server crashed" or something. I'm using the latest version of an iMac. Anyone know why? I think it's something with Forge actually...Oh nvm, i just remembered my friend just did Forge and Custom NPCs and it worked fine for him...