Minecraft Forums

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\Collin\AppData\Roaming\.minecraft\crash-reports\crash-2012-11-04_22.17.32-server.txt for your convenience. Please include a copy of this file if you report this crash to anyone.



--- BEGIN ERROR REPORT dfe0f06e --------
Generated 11/4/12 10:17 PM

- Minecraft Version: 1.4.2
- Operating System: Windows 7 (x86) version 6.1
- Java Version: 1.7.0_07, Oracle Corporation
- Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
- Memory: 376659584 bytes (359 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)
- JVM Flags: 2 total; -Xms128m -Xmx1024m
- AABB Pool Size: 191860 (10744160 bytes; 10 MB) allocated, 0 (0 bytes; 0 MB) used
- Is Modded: Very likely
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: 73 (4088 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
- Player Count: 0 / 8; []
- World New World Entities: 0 total; []
- World New World Players: 0 total; []
- World New World Chunk Stats: ServerChunkCache: 0 Drop: 0
- Type: Integrated Server

java.util.ConcurrentModificationException
at java.util.HashMap$Ha­erator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at xr.a(SourceFile:72)
at ie.b(SourceFile:106)
at net.minecraft.server.MinecraftServer.r(SourceFile:717)
at net.minecraft.server.MinecraftServer.q(SourceFile:661)
at bcb.q(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:595)
at fp.run(SourceFile:818)
--- END ERROR REPORT ec737fd0 ----------

what does it mean?