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[1.16.5] Error "malformed input around byte" when trying to connect to modded server with my mod

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Posted September 11, 20214 yr

Hey, I have a minecraft modded server running on mohist in order to test my mod, however, I can connect to the server but can't join the world because of the following error : "UTFDataFormatException: malformed input around byte", and the thing is, it works perfectly fine in singleplayer, and I don't know at all what is causing this error. So if I can get some help it would be nice, thanks.

And the only error I have on the console server side is :

>.... [14:38:42 WARN]: java.lang.NullPointerException
>.... [14:38:42 WARN]: at hu.montlikadani.tablist.bukkit.tablist.groups.impl.ReflectionHandled.unregisterTeam(ReflectionHandled.java:177)
>.... [14:38:42 WARN]: at hu.montlikadani.tablist.bukkit.tablist.groups.Groups.removePlayerGroup(Groups.java:202)
>.... [14:38:42 WARN]: at hu.montlikadani.tablist.bukkit.TabList.lambda$onPlayerQuit$11(TabList.java:373)
>.... [14:38:42 WARN]: at java.base/java.util.Collection.removeIf(Unknown Source)
>.... [14:38:42 WARN]: at java.base/java.util.Collections$SetFromMap.removeIf(Unknown Source)
>.... [14:38:42 WARN]: at hu.montlikadani.tablist.bukkit.TabList.onPlayerQuit(TabList.java:371)
>.... [14:38:42 WARN]: at hu.montlikadani.tablist.bukkit.listeners.Listeners.onPlayerLeave(Listeners.java:55)
>.... [14:38:42 WARN]: at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>.... [14:38:42 WARN]: at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>.... [14:38:42 WARN]: at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>.... [14:38:42 WARN]: at java.base/java.lang.reflect.Method.invoke(Unknown Source)
>.... [14:38:42 WARN]: at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:303)
>.... [14:38:42 WARN]: at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:76)
>.... [14:38:42 WARN]: at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70)
>.... [14:38:42 WARN]: at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:588)
>.... [14:38:42 WARN]: at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:573)
>.... [14:38:42 WARN]: at net.minecraft.server.management.PlayerList.func_72367_e(PlayerList.java:401)
>.... [14:38:42 WARN]: at net.minecraft.server.management.PlayerList.disconnect(PlayerList.java:386)
>.... [14:38:42 WARN]: at net.minecraft.network.play.ServerPlayNetHandler.func_147231_a(ServerPlayNetHandler.java:1534)
>.... [14:38:42 WARN]: at net.minecraft.network.NetworkManager.func_179293_l(NetworkManager.java:387)
>.... [14:38:42 WARN]: at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:161)
>.... [14:38:42 WARN]: at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:1055)
>.... [14:38:42 WARN]: at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
>.... [14:38:42 WARN]: at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:945)
>.... [14:38:42 WARN]: at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:760)
>.... [14:38:42 WARN]: at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:270)
>.... [14:38:42 WARN]: at java.base/java.lang.Thread.run(Unknown Source)

September 11, 20214 yr

can you post a git repo of your mod?

September 11, 20214 yr

Author

what is your github name ? My repo is private I need to give you the access

September 11, 20214 yr

its Luis-st

September 11, 20214 yr

Author

sent

September 11, 20214 yr

did you use other mod on the server?
because the problem is this class: 'hu.montlikadani.tablist.bukkit.tablist.groups.impl.ReflectionHandled'
but i can't find the class in your repo
i think the code which throws the NullPointerException is client side
which would explain why there is no problem in the single player

September 11, 20214 yr

Author

for now it's the only mod, but I have plugins, it could be that, the class is from the plugin TabList, I can ask the creator

September 11, 20214 yr

Author

alright so the author of the plugin says that it doesn't seem to be caused by the plugin.

And so I looked on the logs of my minecraft launcher and I got this error when I connect:

[19:57:09] [Render thread/FATAL] [minecraft/ThreadTaskExecutor]: Error executing task on Client
java.util.NoSuchElementException: packet_handler
	at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1119) ~[netty-all-4.1.25.Final.jar:4.1.25.Final] {}
	at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:260) ~[netty-all-4.1.25.Final.jar:4.1.25.Final] {}
	at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:249) ~[netty-all-4.1.25.Final.jar:4.1.25.Final] {}
	at net.minecraftforge.network.NetworkFilters.lambda$injectIfNecessary$1(NetworkFilters.java:48) ~[forge:?] {re:classloading}
	at com.google.common.collect.RegularImmutableMap.forEach(RegularImmutableMap.java:146) ~[guava-21.0.jar:?] {}
	at net.minecraftforge.network.NetworkFilters.injectIfNecessary(NetworkFilters.java:44) ~[forge:?] {re:classloading}
	at net.minecraftforge.fml.network.NetworkHooks.sendMCRegistryPackets(NetworkHooks.java:121) ~[forge:?] {re:classloading}
	at net.minecraft.client.network.play.ClientPlayNetHandler.func_147282_a(ClientPlayNetHandler.java:399) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.network.play.server.SJoinGamePacket.func_148833_a(SourceFile:110) ~[?:?] {re:classloading}
	at net.minecraft.network.play.server.SJoinGamePacket.func_148833_a(SourceFile:18) ~[?:?] {re:classloading}
	at net.minecraft.network.PacketThreadUtil.lambda$checkThreadAndEnqueue$0(PacketThreadUtil.java:36) ~[?:?] {re:classloading,xf:OptiFine:default}
	at net.optifine.util.PacketRunnable.run(PacketRunnable.java:28) ~[?:?] {re:classloading}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213166_h(ThreadTaskExecutor.java:189) ~[?:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
	at net.minecraft.util.concurrent.RecursiveEventLoop.func_213166_h(SourceFile:23) ~[?:?] {re:classloading}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213168_p(ThreadTaskExecutor.java:151) ~[?:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213160_bf(ThreadTaskExecutor.java:128) ~[?:?] {re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
	at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:947) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:184) ~[minecraft-1.16.5-client.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_301] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[forge-1.16.5-36.2.1-launcher.jar:36.2] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_301] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:52) [ForgeWrapper-1.5.1.jar:1.5.1] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_301] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_301] {}
	at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:210) [NewLaunch.jar:?] {}
	at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:245) [NewLaunch.jar:?] {}
	at org.multimc.EntryPoint.listen(EntryPoint.java:143) [NewLaunch.jar:?] {}
	at org.multimc.EntryPoint.main(EntryPoint.java:34) [NewLaunch.jar:?] {}

September 11, 20214 yr

can you post the full debug log

September 12, 20214 yr

Author

Ok, do you have an idea of which server we can use instead ?

September 12, 20214 yr

the normal forge one, you can run it directly from the IDE
note: after the first run you need to accept the eula and if you run the server in your ide you need to disable online mode

September 12, 20214 yr

Author

I mean with both mods and plugins

September 12, 20214 yr

thats not possible with the bukkit/spigot plugin system,
if you want to use plugins you can create them with forge,
you can create a only server side mod (more infos about sides mods)
the mod is then not required on client

Edited September 12, 20214 yr by Luis_ST

2 yr2 yr ChampionAsh5357 locked this topic

This topic is now closed to further replies.

https://forums.minecraftforge.net/topic/104350-1165-error-malformed-input-around-byte-when-trying-to-connect-to-modded-server-with-my-mod/

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[1.16.5] Error "malformed input around byte" when trying to connect to modded server with my mod

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