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  1. Minecraft: Java Edition
  2. MC-137302

world converting chunk error

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Duplicate
    • Affects Version/s: Minecraft 1.13.2-pre1
    • Fix Version/s: None
    • Labels:
      None
    • Environment:

      Java 8

      Windows 7

    • Confirmation Status:
      Unconfirmed

      Description

      after i upgrade the world some chunks will not load (a second restart solve this bug)

      it was a upgrade from vanilla 1.12.2 to 1.13.2-pre

       

      "Caused by: java.util.ConcurrentModificationException"

       

      [17:20:39] [Server thread/INFO]: Starting minecraft server version 1.13.2-pre1
      [17:20:39] [Server thread/INFO]: Loading properties
      [17:20:39] [Server thread/INFO]: Default game type: SURVIVAL
      [17:20:39] [Server thread/INFO]: Generating keypair
      [17:20:39] [Server thread/INFO]: Starting Minecraft server on *:25565
      [17:20:39] [Server thread/INFO]: Using default channel type
      [17:20:41] [Server thread/INFO]: Preparing level "world"
      [17:20:45] [Server thread/INFO]: Forcing world upgrade!
      [17:20:45] [Server thread/INFO]: Counting chunks...
      [17:20:46] [Server thread/INFO]: Upgrading all chunks...
      [17:20:46] [Server thread/INFO]: 7% completed (44 / 626 chunks)...
      [17:20:47] [Server thread/INFO]: 17% completed (112 / 626 chunks)...
      [17:20:48] [Server thread/INFO]: 21% completed (134 / 626 chunks)...
      [17:20:49] [Server thread/INFO]: 37% completed (235 / 626 chunks)...
      [17:20:50] [Server thread/INFO]: 46% completed (289 / 626 chunks)...
      [17:20:51] [Server thread/INFO]: 55% completed (348 / 626 chunks)...
      [17:20:52] [Server thread/INFO]: 59% completed (370 / 626 chunks)...
      [17:20:53] [Server thread/INFO]: 63% completed (396 / 626 chunks)...
      [17:20:54] [Server thread/INFO]: 83% completed (521 / 626 chunks)...
      [17:20:55] [Server thread/INFO]: 92% completed (579 / 626 chunks)...
      [17:20:55] [pool-4-thread-1/INFO]: World optimizaton finished after 10411 ms
      [17:20:55] [pool-4-thread-1/INFO]: ThreadedAnvilChunkStorage (DIM-1): All chunks
       are saved
      [17:20:55] [pool-4-thread-1/INFO]: ThreadedAnvilChunkStorage (world): All chunks
       are saved
      [17:20:55] [pool-4-thread-1/INFO]: ThreadedAnvilChunkStorage (DIM1): All chunks
      are saved
      [17:20:56] [Server thread/INFO]: Found new data pack vanilla, loading it automat
      ically
      [17:20:56] [Server thread/INFO]: Reloading ResourceManager: Default
      [17:20:57] [Server thread/INFO]: Loaded 524 recipes
      [17:21:01] [Server thread/INFO]: Loaded 571 advancements
      [17:21:02] [Server thread/INFO]: Preparing start region for dimension minecraft:
      overworld
      [17:21:03] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:04] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:05] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:06] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:07] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:08] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:09] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:10] [Server thread/INFO]: Preparing spawn area: 0%
      [17:21:11] [Server thread/INFO]: Preparing spawn area: 4%
      [17:21:12] [Server thread/INFO]: Preparing spawn area: 8%
      [17:21:12] [Server thread/INFO]: Preparing spawn area: 12%
      [17:21:12] [Server thread/INFO]: Preparing spawn area: 16%
      [17:21:13] [Server thread/INFO]: Preparing spawn area: 20%
      [17:21:13] [Server thread/INFO]: Preparing spawn area: 24%
      [17:21:13] [Server thread/INFO]: Preparing spawn area: 28%
      [17:21:13] [Server thread/INFO]: Preparing spawn area: 32%
      [17:21:14] [Server thread/INFO]: Preparing spawn area: 36%
      [17:21:14] [Server thread/INFO]: Preparing spawn area: 40%
      [17:21:14] [Server thread/INFO]: Preparing spawn area: 44%
      [17:21:15] [Server thread/INFO]: Preparing spawn area: 48%
      [17:21:15] [Server thread/INFO]: Preparing spawn area: 52%
      [17:21:15] [Server thread/INFO]: Preparing spawn area: 56%
      [17:21:16] [Server thread/INFO]: Preparing spawn area: 60%
      [17:21:16] [Server thread/INFO]: Preparing spawn area: 64%
      [17:21:16] [Server thread/INFO]: Preparing spawn area: 68%
      [17:21:17] [Server thread/INFO]: Preparing spawn area: 72%
      [17:21:17] [Server thread/INFO]: Preparing spawn area: 76%
      [17:21:17] [Server thread/INFO]: Preparing spawn area: 80%
      [17:21:18] [Server thread/INFO]: Preparing spawn area: 84%
      [17:21:18] [Server thread/INFO]: Preparing spawn area: 88%
      [17:21:18] [Server thread/INFO]: Preparing spawn area: 92%
      [17:21:19] [Server thread/INFO]: Preparing spawn area: 96%
      [17:21:20] [Server thread/INFO]: Preparing spawn area: 96%
      [17:21:20] [Server thread/INFO]: Preparing spawn area: 100%
      [17:21:20] [Server thread/INFO]: Time elapsed: 18734 ms
      [17:21:20] [Server thread/INFO]: Done (39.143s)! For help, type "help"
      [17:21:20] [Server thread/FATAL]: Error executing task
      java.util.concurrent.ExecutionException: java.util.ConcurrentModificationExcepti
      on
              at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_181]        at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:200) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.b(SourceFile:726) [vanilla-1.13.
      2-pre.jar:?]
              at so.b(SourceFile:360) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.a(SourceFile:681) [vanilla-1.13.
      2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.run(SourceFile:584) [vanilla-1.1
      3.2-pre.jar:?]
              at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
      Caused by: java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_181
      ]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at bnj.E(SourceFile:1162) ~[vanilla-1.13.2-pre.jar:?]
              at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~
      [?:1.8.0_181]
              at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:199) ~[vanilla-1.13.2-pre.jar:?]
              ... 5 more
      [17:21:20] [Server thread/FATAL]: Error executing task
      java.util.concurrent.ExecutionException: java.util.ConcurrentModificationExcepti
      on
              at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_181]        at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:200) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.b(SourceFile:726) [vanilla-1.13.
      2-pre.jar:?]
              at so.b(SourceFile:360) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.a(SourceFile:681) [vanilla-1.13.
      2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.run(SourceFile:584) [vanilla-1.1
      3.2-pre.jar:?]
              at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
      Caused by: java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_181
      ]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at bnj.E(SourceFile:1162) ~[vanilla-1.13.2-pre.jar:?]
              at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~
      [?:1.8.0_181]
              at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:199) ~[vanilla-1.13.2-pre.jar:?]
              ... 5 more
      [17:21:20] [Server thread/FATAL]: Error executing task
      java.util.concurrent.ExecutionException: java.util.ConcurrentModificationExcepti
      on
              at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_181]        at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:200) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.b(SourceFile:726) [vanilla-1.13.
      2-pre.jar:?]
              at so.b(SourceFile:360) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.a(SourceFile:681) [vanilla-1.13.
      2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.run(SourceFile:584) [vanilla-1.1
      3.2-pre.jar:?]
              at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
      Caused by: java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_181
      ]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at bnj.E(SourceFile:1162) ~[vanilla-1.13.2-pre.jar:?]
              at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~
      [?:1.8.0_181]
              at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:199) ~[vanilla-1.13.2-pre.jar:?]
              ... 5 more
      [17:21:20] [Server thread/FATAL]: Error executing task
      java.util.concurrent.ExecutionException: java.util.ConcurrentModificationExcepti
      on
              at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_181]        at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:200) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.b(SourceFile:726) [vanilla-1.13.
      2-pre.jar:?]
              at so.b(SourceFile:360) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.a(SourceFile:681) [vanilla-1.13.
      2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.run(SourceFile:584) [vanilla-1.1
      3.2-pre.jar:?]
              at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
      Caused by: java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_181
      ]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at bnj.E(SourceFile:1162) ~[vanilla-1.13.2-pre.jar:?]
              at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~
      [?:1.8.0_181]
              at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:199) ~[vanilla-1.13.2-pre.jar:?]
              ... 5 more
      [17:21:21] [Server thread/FATAL]: Error executing task
      java.util.concurrent.ExecutionException: java.util.ConcurrentModificationExcepti
      on
              at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_181]        at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:200) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.b(SourceFile:726) [vanilla-1.13.
      2-pre.jar:?]
              at so.b(SourceFile:360) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.a(SourceFile:681) [vanilla-1.13.
      2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.run(SourceFile:584) [vanilla-1.1
      3.2-pre.jar:?]
              at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
      Caused by: java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_181
      ]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at bnj.E(SourceFile:1162) ~[vanilla-1.13.2-pre.jar:?]
              at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~
      [?:1.8.0_181]
              at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:199) ~[vanilla-1.13.2-pre.jar:?]
              ... 5 more
      [17:21:21] [Server thread/FATAL]: Error executing task
      java.util.concurrent.ExecutionException: java.util.ConcurrentModificationExcepti
      on
              at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_181]        at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:200) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.b(SourceFile:726) [vanilla-1.13.
      2-pre.jar:?]
              at so.b(SourceFile:360) [vanilla-1.13.2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.a(SourceFile:681) [vanilla-1.13.
      2-pre.jar:?]
              at net.minecraft.server.MinecraftServer.run(SourceFile:584) [vanilla-1.1
      3.2-pre.jar:?]
              at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]
      Caused by: java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_181
      ]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at java.util.HashMap$EntryIterator.next(Unknown Source) ~[?:1.8.0_181]
              at bnj.E(SourceFile:1162) ~[vanilla-1.13.2-pre.jar:?]
              at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~
      [?:1.8.0_181]
              at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_181]
              at k.a(SourceFile:199) ~[vanilla-1.13.2-pre.jar:?]
              ... 5 more
      

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              • Assignee:
                Unassigned
                Reporter:
                seema seema
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                • Created:
                  Updated:
                  Resolved: