Ayou Ayouuuu

How to fix Java libraries not loading in Minecraft Forge 1.17+

By default, Minecraft Forge does not load dependencies from the classpath unless they are explicitly declared as mods. These steps outline how to remedy this. This guide assumes that:

You are on ForgeGradle 5 or higher.
You are on Forge 1.17.1 (37.0.13) or higher.

Using Java libraries

To configure your Java libraries to be loaded by Forge, you should use the minecraftLibrary configuration provided by ForgeGradle. You now must make sure to declare your dependencies using minecraftLibrary configuration.

Feel free to update and expand upon this.

Requirements

ProtocolLib

Code

package your.package.here;

Using Javalin in a Spigot or Bungeecord Plugin

A common problem when attempting to use Javalin in a Spigot or Bungeecord plugin is the following:

[ERROR] java.lang.RuntimeException: javax.servlet.ServletException: java.lang.RuntimeException: Unable to load org.eclipse.jetty.websocket.server.WebSocketServerFactory
        ...
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.websocket.server.WebSocketServerFactory

This is incredibly frustrating because as far as you can tell, you've included all of Javalin's dependencies properly. In fact, you're probably reading this guide right now because you yourself fell victim to these pesky errors. Don't get too fraught, the solution is right under your nose!

set http or socks proxy environment variables

# set http proxy
export http_proxy=http://PROXYHOST:PROXYPORT

# set http proxy with user and password
export http_proxy=http://USERNAME:PASSWORD@PROXYHOST:PROXYPORT

# set http proxy with user and password (with special characters)

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

	import org.bukkit.entity.Player;
	import org.bukkit.event.Cancellable;
	import org.bukkit.event.Event;
	import org.bukkit.event.HandlerList;
	import org.bukkit.inventory.Inventory;
	import org.bukkit.inventory.ItemStack;

	public class PlayerDropItemSlotEvent extends Event implements Cancellable {

	private final Player player;

	/*******************************************************************************************************
	* MIT License
	*
	* Copyright (c) 2019 PikaMug
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy
	* of this software and associated documentation files (the "Software"), to deal
	* in the Software without restriction, including without limitation the rights
	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	* copies of the Software, and to permit persons to whom the Software is

	package com.github.jikoo.planarwrappers.util;

	import org.bukkit.entity.Player;

	/**
	* A utility for managing player experience.
	*/
	public final class Experience {

	/**

	/*
	* The MIT License
	* Copyright (c) 2015 Techcable
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy
	* of this software and associated documentation files (the "Software"), to deal
	* in the Software without restriction, including without limitation the rights
	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	* copies of the Software, and to permit persons to whom the Software is
	* furnished to do so, subject to the following conditions:

	sudo pacman -Rsc -n nodejs
	sudo pacman -Sy nodejs
	sudo pacman -Sy npm