Minecraft doesn't find java

MathieuMQc

Hi everyone ! I installed Solus today (was on kubuntu) and I LOVE it ! Everything is working just fine but I installed minecraft-launcher with this tutorial : https://getsol.us/articles/gaming/minecraft/en/
I installed openjdk-8 from Software center and when I try to run minecraft (the launcher is running, only the game don't want to cooperate), minecraft say's this :

Impossible de localiser l'environnement d'exécution Java.
Détails de l'erreur : Succès
Nom du fichier sur le disque : java
Chemin : /usr/bin/java
Existe : Nonexistent

google translate :
Unable to locate the Java runtime environment.
Error details: Success
File name on disk: java
Path: / usr / bin / java
Exists: nonexistent

Can you help me please ? Thanks you ! Have a nice day!

Scotty-Trees

MathieuMQc I posted about this issue here: https://discuss.getsol.us/d/4681-minecraft-will-no-longer-launch/2

The fix is from @Girtablulu

inside the terminal

sudo ln -sf /usr/lib64/openjdk-8/bin/java /usr/bin/java

Justin

The search function at the top of the forums is very useful for finding existing posts about issues.

MathieuMQc

Thanks you Scotty !!

livingsilver94

To be frank, I don't like the idea of tampering the system with a symlink, instead I'd prefer to launch Minecraft by setting JAVA_HOME:

JAVA_HOME=/usr/lib64/openjdk-8 minecraft_executable

I don't play Minecraft but I hope it respects the JAVA_HOME variable like any other reasonable Java applications.

Justin

livingsilver94 reasonable Java applications

That's not something you hear often.

Girtablulu

livingsilver94 What will happen if you have multiple different Javas installed, can you set them for each software individual?

JohannPopper

livingsilver94 Perhaps other Solarian Minecraft gamers can confirm that setting JAVA_HOME in Terminal, or in .bashrc, or as an exec=env variable in a manually created .desktop for the .jar, each results in a weird tofu'd error punctuated by the words "error" and "missing"; alternatively, setting jdk8 PATH in .bashrc still results in 'bash: java: command not found' when trying to open any .jar. If so in either case, and if I haven't made any typos and got my jdk8 location right, has there been some other change to the installation structure that should be accounted for in the new Solus Help writeup? Because I'm stumped. Just an FYI & open question to add more specific solutions to this thread because so far I can't get any java apps running the "right" way; however, symlinking works for every app I've tested both via GUI as well as from the shell.

livingsilver94

@Girtablulu yes, that's exactly the point. Unless you export the variable globally, you can set a different JAVA_HOME for every Java application.

tadcan

livingsilver94 I'm not familiar with minecraft, is the

minecraft_executable

in your example a .jar file?

DataDrake

JohannPopper You should be running the launcher, not the JAR directly.

vipnvrs

how to run minecraft.
Install java in the terminal with the command:
sudo eopkg it openjdk-8 gconf binutils

Next, create a text file:

#! /bin/sh

cd /usr/bin/
#sudo ln -sf /usr/lib64/jdk-14.0.1/bin/java java
#sudo ln -sf /usr/lib64/jdk-14.0.1/bin/javac javac
#sudo ln -sf /usr/lib64/jdk-14.0.1/bin/javadoc javadoc
#sudo ln -sf /usr/lib64/jdk-14.0.1/bin/javap javap
#sudo ln -sf /usr/lib64/jdk-14.0.1/bin/jar jar
#sudo ln -sf /usr/lib64/jdk-14.0.1/bin/jarsigner jarsigner

sudo ln -sf /usr/lib64/openjdk-8/bin/java java
sudo ln -sf /usr/lib64/openjdk-8/bin/javac javac
sudo ln -sf /usr/lib64/openjdk-8/bin/java javadoc
sudo ln -sf /usr/lib64/openjdk-8/bin/javah javah
sudo ln -sf /usr/lib64/openjdk-8/bin/javap javap
sudo ln -sf /usr/lib64/openjdk-8/bin/java-rmi.cgi java-rmi.cgi
sudo ln -sf /usr/lib64/openjdk-8/bin/jar jar
sudo ln -sf /usr/lib64/openjdk-8/bin/jarsigner jarsigner

Save it as your name.sh
Open the folder with this file in the terminal and run the command:
./your name.sh

Launching Minecraft

Girtablulu

vipnvrs it's not like we have a guide how to correctly integrate java8 so it doesnt brake stuff which depends on java 11
https://getsol.us/articles/gaming/minecraft/en/

and dont necromant old posts