ProtocolLib

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NPE: Packet encoding of packet ID 80 threw (skippable? false)

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commented
  • This issue is not solved in a development build

Describe the bug
A clear and concise description of what the bug is.
Couple of players kicked because of error

Console error, click to open 
[13:08:17] [Netty Epoll Server IO #3/ERROR]: Packet encoding of packet ID 80 threw (skippable? false)
java.lang.NullPointerException: Cannot invoke "net.minecraft.network.syncher.DataWatcher$Item.a()" because "entry" is null
   at net.minecraft.network.syncher.SynchedEntityData.writeDataItem(SynchedEntityData.java:224) ~[?:?]
   at net.minecraft.network.syncher.SynchedEntityData.pack(SynchedEntityData.java:169) ~[?:?]
   at net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket.write(ClientboundSetEntityDataPacket.java:33) ~[?:?]
   at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:41) ~[purpur-1.19.2.jar:git-Purpur-1774]
   at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:14) ~[purpur-1.19.2.jar:git-Purpur-1774]
   at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) ~[netty-codec-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120) ~[netty-codec-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.ChannelDuplexHandler.write(ChannelDuplexHandler.java:115) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.github.repooper.packetevents.Vulcan_rW.write(Vulcan_rW.java:60) ~[Vulcan-2.6.9.jar:?]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.ChannelDuplexHandler.write(ChannelDuplexHandler.java:115) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at me.neznamy.tab.platforms.bukkit.BukkitPipelineInjector$BukkitChannelDuplexHandler.write(BukkitPipelineInjector.java:91) ~[TAB-3.1.4.jar:?]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.ChannelDuplexHandler.write(ChannelDuplexHandler.java:115) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at com.froobworld.viewdistancetweaks.limiter.ClientViewDistanceManager$ViewDistancePacketModifier.write(ClientViewDistanceManager.java:164) ~[ViewDistanceTweaks-1.5.2.jar:?]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:764) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:790) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:758) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1020) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:311) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:227) ~[ProtocolLib-600.jar:?]
   at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:233) ~[ProtocolLib-600.jar:?]
   at net.minecraft.network.Connection.doSendPacket(Connection.java:459) ~[?:?]
   at net.minecraft.network.Connection.lambda$sendPacket$11(Connection.java:433) ~[?:?]
   at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:391) ~[netty-transport-classes-epoll-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:995) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at java.lang.Thread.run(Thread.java:833) ~[?:?]
[13:08:17] [Netty Epoll Server IO #1/ERROR]: Packet encoding of packet ID 80 threw (skippable? false)
java.lang.NullPointerException: Cannot invoke "net.minecraft.network.syncher.DataWatcher$Item.a()" because "entry" is null
   at net.minecraft.network.syncher.SynchedEntityData.writeDataItem(SynchedEntityData.java:224) ~[?:?]
   at net.minecraft.network.syncher.SynchedEntityData.pack(SynchedEntityData.java:169) ~[?:?]
   at net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket.write(ClientboundSetEntityDataPacket.java:33) ~[?:?]
   at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:41) ~[purpur-1.19.2.jar:git-Purpur-1774]
   at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:14) ~[purpur-1.19.2.jar:git-Purpur-1774]
   at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) ~[netty-codec-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120) ~[netty-codec-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.ChannelDuplexHandler.write(ChannelDuplexHandler.java:115) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.github.repooper.packetevents.Vulcan_rW.write(Vulcan_rW.java:60) ~[Vulcan-2.6.9.jar:?]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.ChannelDuplexHandler.write(ChannelDuplexHandler.java:115) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at me.neznamy.tab.platforms.bukkit.BukkitPipelineInjector$BukkitChannelDuplexHandler.write(BukkitPipelineInjector.java:91) ~[TAB-3.1.4.jar:?]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.ChannelDuplexHandler.write(ChannelDuplexHandler.java:115) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at com.froobworld.viewdistancetweaks.limiter.ClientViewDistanceManager$ViewDistancePacketModifier.write(ClientViewDistanceManager.java:164) ~[ViewDistanceTweaks-1.5.2.jar:?]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:764) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:790) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:758) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1020) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:311) ~[netty-transport-4.1.77.Final.jar:4.1.77.Final]
   at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:227) ~[ProtocolLib-600.jar:?]
   at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:233) ~[ProtocolLib-600.jar:?]
   at net.minecraft.network.Connection.doSendPacket(Connection.java:459) ~[?:?]
   at net.minecraft.network.Connection.lambda$sendPacket$11(Connection.java:433) ~[?:?]
   at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:391) ~[netty-transport-classes-epoll-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:995) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.77.Final.jar:4.1.77.Final]
   at java.lang.Thread.run(Thread.java:833) ~[?:?]
[13:08:17] [Server thread/INFO]: Playerabc123 lost connection: Internal Exception: io.netty.handler.codec.EncoderException: java.lang.NullPointerException: Cannot invoke "net.minecraft.network.syncher.DataWatcher$Item.a()" because "entry" is null
[13:08:17] [Server thread/INFO]: Playerdef456 lost connection: Internal Exception: io.netty.handler.codec.EncoderException: java.lang.NullPointerException: Cannot invoke "net.minecraft.network.syncher.DataWatcher$Item.a()" because "entry" is null

To Reproduce
I can't reproduce it yet but it happened while 1 of the 2 players at the scene was bumping a sitting cat.

Expected behavior
no error or at least no connection lost

Screenshots

Version Info
Provide your ProtocolLib install info with /protocol dump through pastebin.
https://pastebin.com/raw/BgGN7CLi

Additional context