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  1. Minecraft: Java Edition
  2. MC-63072

Hopper: java.util.ConcurrentModificationException

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: Minecraft 14w30b
    • Fix Version/s: Minecraft 14w30c
    • Labels:
      None
    • Confirmation Status:
      Unconfirmed

      Description

      This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-1751785/

      Crash:

      java.util.ConcurrentModificationException
      	at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
      	at java.util.ArrayList$Itr.next(Unknown Source)
      	at qh.a(SourceFile:400)
      	at sd.a(SourceFile:812)
      	at cwk.x(SourceFile:142)
      	at net.minecraft.server.MinecraftServer.run(SourceFile:430)
      	at java.lang.Thread.run(Unknown Source)
      
      

      The following is the first clean report made public about this crash:

      ---- Minecraft Crash Report ----
      // But it works on my machine.
      
      Time: 23/07/14 17:19
      Description: Exception in server tick loop
      
      java.util.ConcurrentModificationException
      	at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
      	at java.util.ArrayList$Itr.next(Unknown Source)
      	at qh.a(SourceFile:400)
      	at sd.a(SourceFile:812)
      	at cwk.x(SourceFile:142)
      	at net.minecraft.server.MinecraftServer.run(SourceFile:430)
      	at java.lang.Thread.run(Unknown Source)
      
      
      A detailed walkthrough of the error, its code path and all known details is as follows:
      ---------------------------------------------------------------------------------------
      
      -- System Details --
      Details:
      	Minecraft Version: 14w30b
      	Operating System: Windows 7 (amd64) version 6.1
      	Java Version: 1.7.0_60, Oracle Corporation
      	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
      	Memory: 987443520 bytes (941 MB) / 1514668032 bytes (1444 MB) up to 3817865216 bytes (3641 MB)
      	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G
      	IntCache: cache: 1, tcache: 1, allocated: 12, tallocated: 94
      	Profiler Position: N/A (disabled)
      	Player Count: 0 / 8; []
      	Type: Integrated Server (map_client.txt)
      	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.
      

      You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-1751785/69650527/

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              • Assignee:
                searge [Mojang] Searge (Michael Stoyke)
                Reporter:
                Hopper [Bot] Hopper
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                Dates

                • Created:
                  Updated:
                  Resolved: