How to run Minecraft 1.18.x in (k)ubuntu 20.04 / java 17 throwing errors

How do I get Minecraft 1.18.x to run? I have openjdk-17 installed and Minecraft 1.16.x runs fine with openjdk-8.

The relevant errors in the console are:

[16:37:00 ERROR]: Game ended with bad state (exit code 1)

Unrecognized VM option 'CMSIncrementalMode' Error: Could not create the Java Virtual Machine.

Unrecognized VM option 'UseConcMarkSweepGC' Error: Could not create the Java Virtual Machine.

Hint: solved below

1 Answer

If you're reading this it's because none of these worked for you:

I'm running Kubuntu 20.04 / kernel 5.13.0-28-generic with openjdk-8 and openjdk-17 installed.

I'm also running Minecraft Launcher v 1.6.93 because I like it.

Solution:

1- Remove openjdk-17

sudo apt remove openjdk-17-*

2- Get Oracle's Java 17

wget

3- Install dependencies first

sudo apt install libc6-i386
sudo apt install libc6-x32

4- Install Java 17

sudo dpkg -i jdk-17_linux-x64_bin.deb

5- Open your Minecraft launcher and set the Java Settings: Executable to the correct path. In my install it's:

/usr/lib/jvm/jdk-17/bin/java

and remove all JVM arguments that give problems.

6- Save your profile and play