NullPointerException when sending PlayerInfo Packet
junebug12851 opened this issue ยท 1 comments
Describe the bug
When sending a Player Info Packet after I do a command, it crashes to a NullPointerException and the client also crashes to the same error.
To Reproduce
Issuing a command to run this code below
ProtocolManager manager = ProtocolLibrary.getProtocolManager();
Player p = (Player) sender;
PacketContainer playerInfoPacket = manager.createPacket(PacketType.Play.Server.PLAYER_INFO);
// New Player
playerInfoPacket.getPlayerInfoAction().write(0, EnumWrappers.PlayerInfoAction.ADD_PLAYER);
// 1 Entry
//playerInfoPacket.getIntegers().write(1, 1);
// Create Sample Player
OfflinePlayer samplePlayer = Bukkit.getOfflinePlayer(UUID.fromString("f84c6a79-0a4e-45e0-879b-cd49ebd4c4e2"));
PlayerInfoData samplePlayerData = new PlayerInfoData(
WrappedGameProfile.fromOfflinePlayer(samplePlayer),
1500,
EnumWrappers.NativeGameMode.ADVENTURE,
WrappedChatComponent.fromJson("{\"text\":\"Steve\"}"));
// Add to list to send to player
ArrayList<PlayerInfoData> playerInfoData = new ArrayList<>();
playerInfoData.add(samplePlayerData);
// Add list to packet
playerInfoPacket.getPlayerInfoDataLists().write(0, playerInfoData);
// Send packet to player
try {
manager.sendServerPacket(p, playerInfoPacket);
} catch (InvocationTargetException e) {
e.printStackTrace();
}Running that in-game causes it to crash as soon as it gets to the last line
manager.sendServerPacket(p, playerInfoPacket);[21:11:36 ERROR]: java.lang.NullPointerException
[21:11:36 WARN]: java.lang.NullPointerException
[21:11:36 WARN]: at net.minecraft.server.v1_15_R1.PacketDataSerializer.a(PacketDataSerializer.java:328)
[21:11:36 WARN]: at net.minecraft.server.v1_15_R1.PacketDataSerializer.a(PacketDataSerializer.java:324)
[21:11:36 WARN]: at net.minecraft.server.v1_15_R1.PacketPlayOutPlayerInfo.b(SourceFile:104)
[21:11:36 WARN]: at net.minecraft.server.v1_15_R1.PacketEncoder.encode(PacketEncoder.java:42)
[21:11:36 WARN]: at net.minecraft.server.v1_15_R1.PacketEncoder.encode(PacketEncoder.java:12)
[21:11:36 WARN]: at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
[21:11:36 WARN]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[21:11:36 WARN]: at java.lang.reflect.Method.invoke(Method.java:498)
[21:11:36 WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector.encode(ChannelInjector.java:473)
[21:11:36 WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector.access$100(ChannelInjector.java:64)
[21:11:36 WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector$1.encode(ChannelInjector.java:243)
[21:11:36 WARN]: at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107)
[21:11:36 WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector$1.write(ChannelInjector.java:249)
[21:11:36 WARN]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717)
[21:11:36 WARN]: at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:764)
[21:11:36 WARN]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:790)
[21:11:36 WARN]: at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:758)
[21:11:36 WARN]: at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:808)
[21:11:36 WARN]: at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1025)
[21:11:36 WARN]: at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:294)
[21:11:36 WARN]: at com.comphenix.protocol.injector.netty.ChannelProxy.writeAndFlush(ChannelProxy.java:327)
[21:11:36 WARN]: at net.minecraft.server.v1_15_R1.NetworkManager.lambda$b$6(NetworkManager.java:300)
[21:11:36 WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector$3.lambda$onMessageScheduled$1(ChannelInjector.java:321)
[21:11:36 WARN]: at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
[21:11:36 WARN]: at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
[21:11:36 WARN]: at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:384)
[21:11:36 WARN]: at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
[21:11:36 WARN]: at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
[21:11:36 WARN]: at java.lang.Thread.run(Thread.java:748)
[21:11:36 INFO]: junebug12851 lost connection: Internal Exception: io.netty.handler.codec.EncoderException: java.lang.NullPointerException
[21:11:36 INFO]: junebug12851 left the game
Version Info
https://pastebin.com/kPtkcHGT
Additional context
This is a simple scratch server, there's only 2 plugins installed, ProtocolLib and my plugin that uses ProtocolLib. The Server is Paper 1.15.2 and I'm using ProtocolLib 4.5.1 as instructed to do so on the Spigot home page for my version number.
I have several listeners and stuff that modify more simple packets and are doing very well without any errors so I don't know what I'm doing wrong here for this one although PlayerInfo is a bit more complex.