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  1. Minecraft: Java Edition
  2. MC-77703

ConcurrentModificationException Crash MinecraftServer 1.8.1

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • Minecraft 1.8.1
    • None
    • OS X 10.10.1.
      java version "1.6.0_65"
      Java(TM) SE Runtime Environment (build 1.6.0_65-b14-466.1-11M4716)
      Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-466.1, mixed mode)
    • Unconfirmed

      MinecraftServer 1.8.1 is crashing consistently for me. This is my kid's server and we have not installed any mods. There are a lot of log lines about setting player scores and then this exception. This exception happens even if no one is connected to the server.

      java.util.ConcurrentModificationException
      at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
      at java.util.TreeMap$KeyIterator.next(TreeMap.java:1154)
      at qu.a(SourceFile:574)
      at qu.a(SourceFile:554)
      at bfw.a(SourceFile:259)
      at bfw.a(SourceFile:114)
      at qt.b(SourceFile:160)
      at qt.a(SourceFile:204)
      at qu.a(SourceFile:766)
      at net.minecraft.server.MinecraftServer.a(SourceFile:361)
      at net.minecraft.server.MinecraftServer.s(SourceFile:384)
      at pf.run(SourceFile:716)

            Unassigned Unassigned
            adhamh Adhamh Findlay
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              Created:
              Updated:
              Resolved: