maven-publish

publishing {
    publications {
        maven(MavenPublication) {
            pom {
                name = 'projectname'
                description = 'Whatever ...'
            }
            artifactId project.name
            groupId project.group
            version project.version

            // Without the following line, these gradle build scripts publish no jar to maven
            // We have not succeeded in finding out why (as of May 2019)
            from components.java
        }
    }
    repositories {
        maven {
            def releasesRepoUrl = "(url here)"
            def snapshotsRepoUrl = "(url here)"
            url = version.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl
            credentials {
                username mavenUser
                password mavenPassword
            }
        }
    }
}