Host is Tumbleweed. Java is: entropy@localhost:~> java --version openjdk 11.0.18 2023-01-17 OpenJDK Runtime Environment (build 11.0.18+0-suse-3.1-x8664) OpenJDK 64-Bit Server VM (build 11.0.18+0-suse-3.1-x8664, mixed mode) entropy@localhost:~> Now when trying to simply click on it, it gives a window with the uncompressed jar file (which is not what I want, and yes, I have made it executable after downloading. When telling TW to run the jar file with java (e.g. in a terminal to get output of what goes wrong here), it complains as follows: Errore: impossibile trovare o caricare la classe principale .home.entropy.bin.XiaomiADBFastbootTools.jar Causato da: java.lang.ClassNotFoundException: /home/entropy/bin/ XiaomiADBFastbootTools/jar what do I do wrongly, what is my problem here. Anybody having experience with starting this program is highly welcome to comment. Thank you in advance.