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GameProfile field not found in TinyProtocol #2497

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gamerover98 opened this issue Aug 5, 2023 · 0 comments · May be fixed by #2499
Closed
1 task done

GameProfile field not found in TinyProtocol #2497

gamerover98 opened this issue Aug 5, 2023 · 0 comments · May be fixed by #2499

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@gamerover98
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gamerover98 commented Aug 5, 2023 •
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  • This issue is not solved in a development build

Describe the bug
When using the TinyProtocol class, at line 67 the Cannot find field with type class com.mojang.authlib.GameProfile has occurred.

To Reproduce
Steps to reproduce the behavior:

  1. Add TinyProtocol and Reflection classes into your plugin project
  2. Add a simple implementation like the following one:
package it.test.protocol;

import io.netty.channel.Channel;
import it.test.protocol.TinyProtocol;
import org.bukkit.entity.Player;
import org.bukkit.plugin.Plugin;

public class TestTinyProtocol extends TinyProtocol {

    public TestTinyProtocol(Plugin plugin) {
        super(plugin);
    }

    @Override
    public Object onPacketOutAsync(Player receiver, Channel channel, Object packet) {
        plugin.getLogger().info("OUT: " + packet.toString());
        return super.onPacketOutAsync(receiver, channel, packet);
    }

    @Override
    public Object onPacketInAsync(Player sender, Channel channel, Object packet) {
        plugin.getLogger().info("IN: " + packet.toString());
        return super.onPacketInAsync(sender, channel, packet);
    }
}
  1. Add it to the plugin onLoad/onEnable (same behavior)
    this.tinyProtocol = new TestTinyProtocol(plugin);
  2. Start the server and wait until the error occurred.

Exception

Caused by: java.lang.IllegalArgumentException: Cannot find field with type class com.mojang.authlib.GameProfile
        at it.test.protocol.Reflection.getField(Reflection.java:179) ~[ParadiseLand.jar:?]
        at it.test.protocol.Reflection.getField(Reflection.java:177) ~[ParadiseLand.jar:?]
        at it.test.protocol.Reflection.getField(Reflection.java:177) ~[ParadiseLand.jar:?]
        at it.test.protocol.Reflection.getField(Reflection.java:123) ~[ParadiseLand.jar:?]
        at it.test.protocol.TinyProtocol.<clinit>(TinyProtocol.java:67) ~[ParadiseLand.jar:?]
        ... 14 more

This is because the net.minecraft.network.protocol.login.PacketLoginInStart from Spigot 1.19 no longer has a GameProfile field:
image

Expected behavior
Correct TinyProtocol loading.

Version Info
ProtocolLib: not used in this case
TinyProtocol: the latest available class from the GitHub master branch.

Additional context
TinyProtocol works from 1.8.8 to 1.18.2 and does not work from: 1.19

Thanks! 🥇
@gamerover98 gamerover98 changed the title authlib GameProfile class not found in TinyProtocol GameProfile field not found in TinyProtocol Aug 5, 2023
@gamerover98 gamerover98 mentioned this issue Aug 5, 2023
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Successfully merging a pull request may close this issue.

Fixed TinyProtocol for 1.19+ gamerover98/ProtocolLib
2 participants
@dmulloy2 @gamerover98