GitHub

Internal Exception: java.lang.IllegalArgumentException: Registry ResourceKey[minecraft:root / apoli:configured_entity_condition] was missing

I'm unable to replicate this with purely the base Origins, but I'm going to try downloading a larger Origins pack (Origins++, ik you're the maintainer of it, and you're probably reporting this based ...
GitHub

Internal Exception: java.util.ConcurrentModificationException

java.lang.ClassCastException: class net.minecraft.server.network.ServerGamePacketListenerImpl cannot be cast to class net.minecraft.network.protocol.game.ClientGamePacketListener (net.minecraft.server ...
The Droid Guy

How To Fix Minecraft Internal Exception Java.IO.IOException Error

Are you getting the frustrating “Internal Exception Java.IO.IOException” error when playing Minecraft? This problem affects a lot of players because it can be ...
stealthoptional

How To Fix java.net.SocketException Connection Reset Error In Minecraft

Getting the "Internal Exception: java.net.SocketException: Connection Reset" error in Minecraft? Don't panic, you can fix it yourself! Although Minecraft is a very ...
TheServerSide

Stop with the unsafe internal Java API calls, or the JDK will stop it for you

You can't blame Mark Reinhold, chief architect of the Java Platform Group at Oracle, for showing a bit of frustration with Java developers who insist on calling methods that have been deprecated for ...
InfoWorld

Exception handling in Java: The basics

If you’ve ever wanted to understand how failure is represented in source code, you’ve come to the right place. In addition to an overview of Java exceptions, this article gets you started with Java’s ...