plugins { id 'java' } allprojects { repositories { mavenCentral() } } task mergeJars(type: Jar) { archiveBaseName = 'EptaList' archiveVersion = '1.2' def jarPaths = [ "C:\\Users\\User\\IdeaProjects\\EptaListProject\\velocity\\build\\libs\\velocity-"+'1.2'+".jar", "C:\\Users\\User\\IdeaProjects\\EptaListProject\\spigot\\build\\libs\\spigot-"+'1.2'+".jar", "C:\\Users\\User\\IdeaProjects\\EptaListProject\\base\\build\\libs\\base-"+'1.2'+".jar" ] from jarPaths.collect { zipTree(it) } duplicatesStrategy = DuplicatesStrategy.INCLUDE }