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  1. Minecraft: Java Edition
  2. MC-152049

Exception in server tick loop: java.lang.IncompatibleClassChangeError

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    • Icon: Bug Bug
    • Resolution: Awaiting Response
    • None
    • Minecraft 1.14.1
    • None
    • Unconfirmed
    • Crash

      Running Vanilla 1.14.1 server on fully patched Ubuntu Server 18.04, with one i5-6500 core allocated to the VM and 2048MB of RAM. This crash crashes the server. I initially had some issues running a similiar configuration (using MC 1.14 on CentOS 7 Minimal), but switching to Ubuntu seemed to have fixed it.

      Crash log is included below.

      Description: Exception in server tick loop
      
      java.lang.IncompatibleClassChangeError: Class java.util.ArrayList does not implement the requested interface it.unimi.dsi.fastutil.objects.ObjectList
      	at vj.z_(SourceFile:137)
      	at ve$a.p(SourceFile:506)
      	at ve.d(SourceFile:239)
      	at net.minecraft.server.MinecraftServer.aW(SourceFile:708)
      	at net.minecraft.server.MinecraftServer.p(SourceFile:696)
      	at agk.c(SourceFile:123)
      	at net.minecraft.server.MinecraftServer.o(SourceFile:681)
      	at net.minecraft.server.MinecraftServer.run(SourceFile:636)
      	at java.base/java.lang.Thread.run(Thread.java:834)
      

            Unassigned Unassigned
            jacobsburley Jacob Burley
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              Created:
              Updated:
              Resolved: