Issues running java/kolmafia

[wildsidr]

A few days ago I tried updating java to the newest version since my previous java installation was working slowly and with many errors but now mafia opens after 15 minutes of me executing the .rar file and it does so with many issues like not loading images, running slower than before etc.

This is the version i'm running atm
openjdk version "21.0.8" 2025-07-15 LTS
OpenJDK Runtime Environment Temurin-21.0.8+9 (build 21.0.8+9-LTS)
OpenJDK 64-Bit Server VM Temurin-21.0.8+9 (build 21.0.8+9-LTS, mixed mode, sharing)

Multitool is not running, it did make a log file on my mafia folder but it appears to be still working on it even after 20 minutes?

Running thru cmd gets me this error in spanish

C:\Users\user\Desktop\New folder - copia - copia>java Kolmafia-28594.jar
Error: no se ha encontrado o cargado la clase principal Kolmafia-28594.jar
Causado por: java.lang.ClassNotFoundException: Kolmafia-28594.jar

which should be

Error: The main class Kolmafia-28594.jar could not be found or loaded.
Caused by: java.lang.ClassNotFoundException: Kolmafia-28594.jar

Any help is appreciated.

 

[heeheehee]

If you're using `java` from the command line, you'll need to specify `java -jar Kolmafia-28594.jar`.

 

[wildsidr]

Weird... it's says it's linux, and I just checked and I downloaded the windows version?


it's still not running

 

[txrangersxx]

I wouldn't run it from a folder inside a system folder. Put it in a folder on the C: drive

 

[wildsidr]

Thanks.

Still not running.

 

[Ryo_Sangnoir]

It says it's Linux because we compile Mafia on Linux. It should still work.

After it prints the version of Java, it should pop open a GUI.

If you run `java -jar Kolmafia-28594.jar --cli`, what happens?