ProtocolLib

Bukkit Plugins
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Unable to sent packets (Field index 0 is out of bounds for length 0)

baileyqdotme opened this issue · 1 comments

commented

Follow this template except for feature requests. Use pastebin when providing /protocol dump and any relevant errors.

Make sure you've done the following:

  • You're using the latest build for your server version
  • This isn't fixed in a recent development build
  • This isn't an issue caused by another plugin
  • You've checked for duplicate issues
  • You didn't use /reload

Console log

[19:40:14 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'vanish' in plugin ProjectCore v0.1.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R1.CraftServer.dispatchCommand(CraftServer.java:1007) ~[paper-1.20.1.jar:git-Paper-167]
        at org.bukkit.craftbukkit.v1_20_R1.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.20.1.jar:git-Paper-167]
        at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:265) ~[paper-1.20.1.jar:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:324) ~[?:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:308) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.performChatCommand(ServerGamePacketListenerImpl.java:2354) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$21(ServerGamePacketListenerImpl.java:2314) ~[?:?]
        at net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:59) ~[?:?]
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.1.jar:git-Paper-167]
        at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
        at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
        at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1339) ~[paper-1.20.1.jar:git-Paper-167]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[paper-1.20.1.jar:git-Paper-167]
        at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
        at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1316) ~[paper-1.20.1.jar:git-Paper-167]
        at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1309) ~[paper-1.20.1.jar:git-Paper-167]
        at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
        at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1287) ~[paper-1.20.1.jar:git-Paper-167]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1175) ~[paper-1.20.1.jar:git-Paper-167]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.1.jar:git-Paper-167]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: com.comphenix.protocol.reflect.FieldAccessException: Field index 0 is out of bounds for length 0
        at com.comphenix.protocol.reflect.FieldAccessException.fromFormat(FieldAccessException.java:49) ~[ProtocolLib (5).jar:?]
        at com.comphenix.protocol.reflect.StructureModifier.write(StructureModifier.java:316) ~[ProtocolLib (5).jar:?]
        at me.baileyq.projectcore.Staff.Utils.EntityHider.hideEntity(EntityHider.java:256) ~[projectcore-0.1.0.jar:?]
        at me.baileyq.projectcore.Staff.Commands.VanishCommand.onCommand(VanishCommand.java:39) ~[projectcore-0.1.0.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        ... 23 more

Description and relevant errors

This is on line 256, which is a part of the hideEntity() function I have.

My code:

    public final boolean hideEntity(Player observer, Entity entity) {
        validate(observer, entity);
        boolean visibleBefore = setVisibility(observer, entity.getEntityId(), false);

        if (visibleBefore) {
            PacketContainer destroyEntity = new PacketContainer(ENTITY_DESTROY); 
            destroyEntity.getIntegerArrays().write(0, new int[] { entity.getEntityId() });

            // Make the entity disappear
            try {
                manager.sendServerPacket(observer, destroyEntity);
            } catch (InvocationTargetException e) {
                throw new RuntimeException("Cannot send server packet.", e);
            }
        }
        return visibleBefore;
    }

Any help would be greatly appreciated!

commented

In 1.20 PacketPlayOutEntityDestroy uses IntList class instead of int arrays.

public final boolean hideEntity(Player observer, Entity entity) {
	validate(observer, entity);
	boolean visibleBefore = setVisibility(observer, entity.getEntityId(), false);

	if (visibleBefore) {
		PacketContainer destroyEntity = new PacketContainer(ENTITY_DESTROY);
		
		IntList intList = new IntArrayList();
		intList.add(entity.getEntityId());

		destroyEntity.getIntLists().write(0, intList);

		// Make the entity disappear
		try {
			manager.sendServerPacket(observer, destroyEntity);
		} catch (InvocationTargetException e) {
			throw new RuntimeException("Cannot send server packet.", e);
		}
	}
	return visibleBefore;
}
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