Slimefun Build 1145 produces errors on Paper 1.20.6 (build #124)

[CodingWithAnxiety]

❗ Checklist

• [X] I am using the official english version of Slimefun and did not modify the jar.
• [X] I am using an up to date "DEV" (not "RC") version of Slimefun.
• [X] I am aware that issues related to Slimefun addons need to be reported on their bug trackers and not here.
• [X] I searched for similar open issues and could not find an existing bug report on this.

📍 Description

When starting a 1.20.6 server using paper, whilst having the latest Slimefun dev version installed, the following error occurs:

[00:36:41 ERROR]: [dough: skins] Failed to detect skull nbt methods
java.lang.NoSuchMethodException: net.minecraft.world.level.block.entity.SkullBlockEntity.a(com.mojang.authlib.GameProfile)
    at java.base/java.lang.Class.getMethod(Class.java:2395) ~[?:?]
    at io.papermc.reflectionrewriter.runtime.AbstractDefaultRulesReflectionProxy.getMethod(AbstractDefaultRulesReflectionProxy.java:100) ~[reflection-rewriter-runtime-0.0.1.jar:?]
    at io.papermc.paper.pluginremap.reflect.PaperReflectionHolder.getMethod(Unknown Source) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.libraries.dough.skins.nms.PlayerHeadAdapter18.<init>(PlayerHeadAdapter18.java:23) ~[Slimefun4-Dev(1).jar:?]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.libraries.dough.skins.nms.PlayerHeadAdapter.get(PlayerHeadAdapter.java:31) ~[Slimefun4-Dev(1).jar:?]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.libraries.dough.skins.PlayerHead.<clinit>(PlayerHead.java:23) ~[Slimefun4-Dev(1).jar:?]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.utils.SlimefunUtils.getCustomHead(SlimefunUtils.java:246) ~[Slimefun4-Dev(1).jar:?]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.core.services.localization.Language.<init>(Language.java:52) ~[Slimefun4-Dev(1).jar:?]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.core.services.LocalizationService.<init>(LocalizationService.java:67) ~[Slimefun4-Dev(1).jar:?]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.implementation.Slimefun.onPluginStart(Slimefun.java:300) ~[Slimefun4-Dev(1).jar:?]
    at Slimefun4-Dev(1).jar/io.github.thebusybiscuit.slimefun4.implementation.Slimefun.onEnable(Slimefun.java:241) ~[Slimefun4-Dev(1).jar:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:287) ~[paper-api-1.20.6-R0.1-SNAPSHOT.jar:?]
    at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:519) ~[paper-api-1.20.6-R0.1-SNAPSHOT.jar:?]
    at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:604) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:553) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:675) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:437) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:323) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1136) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[paper-1.20.6.jar:1.20.6-124-0fcf3e3]
    at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]

In addition, having the Exotic Garden plugin installed furthers the issue. As exotic garden is a community plugin, I will not discuss it any further beyond the following pastebin link; https://paste.ee/p/RiOjp

📑 Reproduction Steps

1. Prepare a base, 1.20.6, paper server.
   • No configuration needs to be made to the server, minus eula=true
2. Launch the server. I am doing this using OpenJDK 21
3. Presented with error.

💡 Expected Behavior

No errors to occur during startup of the server.

📷 Screenshots / Videos

https://github.com/Slimefun/Slimefun4/assets/78890450/47306bee-3dd8-42b5-832c-b3ee7ba6b793

I do not scroll within the video.

📜 Server Log

https://paste.ee/p/9RBoV

📂 /error-reports/ folder

N/A

💻 Server Software

Paper

🎮 Minecraft Version

1.20.x

⭐ Slimefun version

slimefun versions [00:52:07 INFO]: This Server uses the following setup of Slimefun: Paper 1.20.6-124-0fcf3e3 (MC: 1.20.6) Slimefun Dev - 1145 Java 21

Installed Addons: (1) ExoticGarden vDEV - 78 (git 7f9a5f63)

🧭 Other plugins

This error exists within both ExoticGarden alongside slimefun. I recall seeing outputted errors from EcoPower, however I did not have it installed in none of my logs which are linked here.

[CodingWithAnxiety]

Renamed. The server still works (assuming Exotic Garden isn't installed) however the errors still cocur.

[CodingWithAnxiety]

From the discord bugs channel:

Errors in the slimefun plugins folder are not documented as it does not produce any errors within this folder.

[JustAHuman-xD]

We don’t support 1.20.5+

[JustAHuman-xD]

Update is a WIP

[CodingWithAnxiety]

Got-cha. Well, I hope this report helps you trace down another bug.

[EpicPlayerA10]

The error lies in dough lib. Here is a PR that adds support for 1.20.6 https://github.com/Slimefun/dough/pull/271

[CodingWithAnxiety]

I thought it had something to do with dough considering the errors were being spat with dough's name in them. Good catch.