One I tried utilizing a manifest and entry point without good results, until I tried building the class file 1st when you pointed out. jar cfm OlivePressApp.jar Manifest.txt com/lynda/olivepress/Most important.class com/lynda/olivepress/* You may use the subsequent possibilities to personalize the actions of your build plus the update major operation modes: https://lorenzoygms51852.scrappingwiki.com/795100/the_ultimate_guide_to_handmade_self_care_gifts_from_scented_jar_candles_to_homemade_bath_soap