java.lang.ExceptionInInitializerError

[GabrielAtlas]

Why?

Error log: https://pastebin.com/tJ2NvfhB

My code:

private boolean isValidParticle(String particle) {
		try {
			ParticleEffect.valueOf(particle);
			return true;
		} catch (Exception e) {
			return false;
		}
}

[ByteZ1337]

Do you use a custom ClassLoader by any chance?

[GabrielAtlas]

Yeah, i have a custom class loader running my plugins

[ByteZ1337]

Well, that is the issue here. I'm using the plugin field in the PluginClassLoader to retrieve the plugin, that belongs to ParticleLib. This plugin instance is needed to register Listeners and start tasks.

I might add a setter for the plugin in the future, but in the meantime, you have to load the ReflectionUtils class with the normal Bukkit ClassLoader. To do that, just add a simple method call that does nothing (like ReflectionUtils.existsClass("");) to your onEnable method. Let me know if that fixes your issue for now.

[ByteZ1337]

You can now set the ReflectionUtils#plugin field in 1.6.4.