1.19.3 packet ID 78 threw

Question

1.19.3 packet ID 78 threw

LucidAPs opened this issue 2 years ago · 9 comments

LucidAPs commented 2 years ago

Using build 607
https://nekobin.com/liqolapiwo

wolfkarst · Answer 1 · 2022-12-17T16:10:04.000Z

Any news from the Team?
I have to disable an essential Plugin of my Server to keep it running ...

lokka30 · Answer 2 · 2022-12-18T01:00:30.000Z

Phew, glad it was not just me.

lokka30 · Answer 3 · 2022-12-18T06:48:48.000Z

Linked to #2032

wolfkarst · Answer 4 · 2022-12-18T18:54:07.000Z

New Version #608 didn't solve the problem ...
Packet encoding of packet ID 78 threw (skippable? false)
java.lang.ClassCastException: class net.minecraft.network.syncher.DataWatcher$Item cannot be cast to class net.minecraft.network.syncher.DataWatcher$b (net.minecraft.network.syncher.DataWatcher$Item and net.minecraft.network.syncher.DataWatcher$b are in unnamed module of loader java.net.URLClassLoader @5c29bfd)
at net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket.pack(ClientboundSetEntityDataPacket.java:17) ~[?:?]
at net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket.write(ClientboundSetEntityDataPacket.java:38) ~[?:?]
at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:41) ~[paper-1.19.3.jar:git-Paper-343]
at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:14) ~[paper-1.19.3.jar:git-Paper-343]
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) ~[netty-codec-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120) ~[netty-codec-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:764) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:790) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:758) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1020) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:311) ~[netty-transport-4.1.82.Final.jar:4.1.82.Final]
at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:227) ~[ProtocolLib 608.jar:?]
at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:233) ~[ProtocolLib 608.jar:?]
at net.minecraft.network.Connection.doSendPacket(Connection.java:459) ~[?:?]
at net.minecraft.network.Connection.lambda$sendPacket$11(Connection.java:433) ~[?:?]
at com.comphenix.protocol.injector.netty.channel.NettyEventLoopProxy.lambda$proxyRunnable$2(NettyEventLoopProxy.java:48) ~[ProtocolLib 608.jar:?]
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) ~[netty-common-4.1.82.Final.jar:4.1.82.Final]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167) ~[netty-common-4.1.82.Final.jar:4.1.82.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[netty-common-4.1.82.Final.jar:4.1.82.Final]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:403) ~[netty-transport-classes-epoll-4.1.82.Final.jar:4.1.82.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.82.Final.jar:4.1.82.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.82.Final.jar:4.1.82.Final]
at java.lang.Thread.run(Thread.java:833) ~[?:?]

lokka30 · Answer 5 · 2022-12-19T00:16:08.000Z

If you are using a packet listener for entity metadata, find out how to fix this here (see post 3).

wolfkarst · Answer 6 · 2022-12-16T05:32:49.000Z

Same for my Server:
Packet encoding of packet ID 78 threw (skippable? false)
java.lang.ClassCastException: class net.minecraft.network.syncher.DataWatcher$Item cannot be cast to class net.minecraft.network.syncher.DataWatcher$b (net.minecraft.network.syncher.DataWatcher$Item and net.minecraft.network.syncher.DataWatcher$b are in unnamed module of loader java.net.URLClassLoader @5c29bfd)
at net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket.pack(ClientboundSetEntityDataPacket.java:17)
at net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket.write(ClientboundSetEntityDataPacket.java:38)
at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:41)
at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:14)
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709)
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792)
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702)
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717)
at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:764)
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:790)
at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:758)
at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1020)
at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:311)
at ProtocolLib.jar//com.comphenix.

LucidAPs · Answer 7 · 2022-12-16T10:15:57.000Z

This issue for me was caused by quickshop, they fixed it on their latest dev builds
https://ci.codemc.io/job/PotatoCraft-Studio/job/QuickShop-Reremake-SNAPSHOT/

ArmonicPvP · Answer 8 · 2023-01-01T03:46:54.000Z

This is STILL happening for me as well

TheLimeGlass · Answer 9 · 2023-04-17T10:52:28.000Z

Solution for those reading this is to be using the new WrappedDataValue in version 5.0.0-SNAPSHOT +

Updated setMetadata method for the WrapperPlayServerEntityMetadata class while maintaining past ProtocolLib support:

public void setMetadata(List<WrappedWatchableObject> list) {
	if (classExists("com.comphenix.protocol.wrappers.WrappedDataValue")) {
		List<WrappedDataValue> values = new ArrayList<>();
		for (WrappedWatchableObject entry : list) {
			WrappedDataWatcherObject watcherObject = entry.getWatcherObject();
			values.add(new WrappedDataValue(watcherObject.getIndex(), watcherObject.getSerializer(), entry.getRawValue()));
		}
		handle.getDataValueCollectionModifier().write(0, values);
	} else {
		handle.getWatchableCollectionModifier().write(0, list);
	}
}

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