Hi
You need to provide the full path to the jar file, or cd to the location if your wanting to default there. For example if it’s in you home bin directory;
Could you please also tell me if it is possible to get some outputs (from kde?) when I try something ? For example in this case only one icon bouncing was visible and thus I could not understand what was wrong.
KDE has the option to open a terminal so you can see the output of the program.
To do this right click on your icon.
Select Properties, a new window will appear.
Select the tab Application, now select Advanced Options.
Make sure you check the option Run in terminal.
> Could you please also tell me if it is possible to get some outputs
> (from kde?) when I try something ? For example in this case only one
> icon bouncing was visible and thus I could not understand what was
> wrong.
the easiest (if not most elaborate / detailed) way is to start your
program from a terminal. usually you’ll get output describing what’s going
on and/or wrong.