@user_profile555 I might not be understanding you correctly: Are you trying to install a .jar file with the libertine-container-manager command line tool? That is not going to work, the install-package subcommand only understands how to deal with .deb packages.

This .jar file, how would you go about running it on Ubuntu Desktop? That might give us an idea as to how you should go about this, if it is possible at all.