Minecraft Version

1.16.x

Version

1.100.2 (MC/forge 1.16.5)

Details

Has occured on multiple independent world saves for me. Can't really make any sense of it based on the source.

java.lang.NoClassDefFoundError: dan200/computercraft/shared/command/UserLevel$1 at dan200.computercraft.shared.command.UserLevel.toLevel(UserLevel.java:42) ~[computercraft:1.100.2] {re:classloading} at dan200.computercraft.shared.command.UserLevel.test(UserLevel.java:61) ~[computercraft:1.100.2] {re:classloading} at dan200.computercraft.shared.command.UserLevel.test(UserLevel.java:18) ~[computercraft:1.100.2] {re:classloading} at com.mojang.brigadier.tree.CommandNode.canUse(CommandNode.java:66) ~[?:?] {re:classloading} at net.minecraft.command.Commands.func_197052_a(Commands.java:279) ~[?:?] {re:classloading} at net.minecraft.command.Commands.func_197052_a(Commands.java:305) ~[?:?] {re:classloading} at net.minecraft.command.Commands.func_197051_a(Commands.java:273) ~[?:?] {re:classloading} at net.minecraft.server.management.PlayerList.func_187245_a(PlayerList.java:598) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.management.PlayerList.func_187243_f(PlayerList.java:492) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:163) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) ~[?:?] {re:classloading} at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) ~[?:?] {re:classloading} at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at java.lang.Thread.run(Thread.java:829) [?:?] {} Caused by: java.lang.ClassNotFoundException: dan200.computercraft.shared.command.UserLevel$1 at java.lang.ClassLoader.findClass(ClassLoader.java:719) ~[?:?] {} at java.lang.ClassLoader.loadClass(ClassLoader.java:589) ~[?:?] {} at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:106) ~[modlauncher-8.0.9.jar:?] {re:classloading} at java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[?:?] {} ... 20 more Suppressed: java.lang.ClassNotFoundException: Failed to find class bytes for dan200.computercraft.shared.command.UserLevel$1 at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:260) ~[modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:136) ~[modlauncher-8.0.9.jar:?] {re:classloading} at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) ~[modlauncher-8.0.9.jar:?] {re:classloading} at java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[?:?] {} at dan200.computercraft.shared.command.UserLevel.toLevel(UserLevel.java:42) ~[computercraft:1.100.2] {re:classloading} at dan200.computercraft.shared.command.UserLevel.test(UserLevel.java:61) ~[computercraft:1.100.2] {re:classloading} at dan200.computercraft.shared.command.UserLevel.test(UserLevel.java:18) ~[computercraft:1.100.2] {re:classloading} at com.mojang.brigadier.tree.CommandNode.canUse(CommandNode.java:66) ~[?:?] {re:classloading} at net.minecraft.command.Commands.func_197052_a(Commands.java:279) ~[?:?] {re:classloading} at net.minecraft.command.Commands.func_197052_a(Commands.java:305) ~[?:?] {re:classloading} at net.minecraft.command.Commands.func_197051_a(Commands.java:273) ~[?:?] {re:classloading} at net.minecraft.server.management.PlayerList.func_187245_a(PlayerList.java:598) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.management.PlayerList.func_187243_f(PlayerList.java:492) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.management.PlayerList.func_72355_a(PlayerList.java:163) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.login.ServerLoginNetHandler.func_147326_c(ServerLoginNetHandler.java:118) ~[?:?] {re:classloading} at net.minecraft.network.login.ServerLoginNetHandler.func_73660_a(ServerLoginNetHandler.java:65) ~[?:?] {re:classloading} at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:222) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:134) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at java.lang.Thread.run(Thread.java:829) [?:?] {} Caused by: java.nio.channels.ClosedChannelException at sun.nio.ch.FileChannelImpl.ensureOpen(FileChannelImpl.java:150) ~[?:?] {} at sun.nio.ch.FileChannelImpl.position(FileChannelImpl.java:349) ~[?:?] {} at sun.nio.ch.FileChannelImpl.position(FileChannelImpl.java:52) ~[?:?] {} at jdk.nio.zipfs.ZipFileSystem.readFullyAt(ZipFileSystem.java:970) ~[jdk.zipfs:?] {} at jdk.nio.zipfs.ZipFileSystem.readFullyAt(ZipFileSystem.java:963) ~[jdk.zipfs:?] {} at jdk.nio.zipfs.ZipFileSystem$EntryInputStream.initDataPos(ZipFileSystem.java:1777) ~[jdk.zipfs:?] {} at jdk.nio.zipfs.ZipFileSystem$EntryInputStream.read(ZipFileSystem.java:1715) ~[jdk.zipfs:?] {} at jdk.nio.zipfs.ZipFileSystem$3.fill(ZipFileSystem.java:1662) ~[jdk.zipfs:?] {} at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:159) ~[?:?] {} at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:252) ~[modlauncher-8.0.9.jar:?] {} ... 23 more

Seems to be happening regulary with every fresh world.

Only thing added is a GPS anchor, an advanced computer + ender modem + monitor, a chunky turtle with ender modem roaming the world and doing some basic rednest broadcasting (most definitly on a very distant chunk).

First time I restart the server and connect - stacktrace.

Related to the chunky turtle booting into a startup script on a distant chunk?

If you uninstall the mod that is providing the chunky turtle does the game still crash?

Closing in favour of #979, which appears to be the same issue.