Headless JDK's cause crashes

[Y1rd]

Does an issue already cover this?

• I have searched for any existing issues, and didn't find any.

Does your system support Faster Random?

• I have checked that my JVM supports Faster Random 3.0.0+.

Issue description.

If you are on a linux distro and using Wayland window manager (e.g. hyprland), the game will crash upon startup.

Issue replication.

1. Run a Wayland window manager
2. Start Minecraft with the mod installed

Log File / Crash Report (if applicable)

https://mclo.gs/tOXu1K7
(Note: Ignore Mod Menu conflict, it does not crash the game.)

[AnOpenSauceDev]

This is technically not an issue with X11 or Wayland at all. What's happening is that your JVM does not support L64X128MixRandom (Line 330), and the popup warning you about that is likely crashing the game (because wayland likely hates that).

[Y1rd]

Ah, thanks.
I'm using OpenJDK 22, so I assume that is the issue I guess.

[AnOpenSauceDev]

That shouldn't be a problem, Faster Random just needs JEP 356 implemented. It's strange that OpenJDK 22 of all things is having trouble with it considering that OpenJDK's above 17 should have this implemented.

[Y1rd]

That shouldn't be a problem, Faster Random just needs JEP 356 implemented. It's strange that OpenJDK 22 of all things is having trouble with it considering that OpenJDK's above 17 should have this implemented.

I just started up the game with OpenJDK 17 and it booted just fine, is OpenJDK 22 missing JEP 356?

[AnOpenSauceDev]

Must be. What is the actual name of the JDK, and did you get it from your package manager?

[Y1rd]

Must be. What is the actual name of the JDK, and did you get it from your package manager?

So, I figured out the issue. I had jre-openjdk-headless installed instead of jdk-openjdk. Woops.
OpenJDK 22 works just fine now.

On another note, I'm suprised Minecraft worked with headless jre and I never noticed until now.

[AnOpenSauceDev]

I wonder if that's the major cause of so many people having the wrong JDK. Not only does it seem to not have the generators for some reason, displaying the popup will cause a crash due to it being headless.

Minecraft probably works fine since LWJGL talks to many native libraries which could bypass Java's systems.

[Y1rd]

Huh, guess we've uncovered something interesting.

[AnOpenSauceDev]

It's more interesting in the case of: "Why isn't RandomGenerator included in a version of a JDK that only should remove some graphical/input features?" It's quite annoying, and I don't really have a way to tell users that they have a broken package without spawning another process (which in light of recent events, is a bad idea).

[Y1rd]

Was going to say to edit the jvm list, but you already did.
Also, yeah... and it seems kinda silly to remove that.