configurations {
        configOne
        configTwo
    }
    task A1jar(type: Jar) {
        archiveFileName = 'A1.jar'
    }
    task A2jar(type: Jar) {
        archiveFileName = 'A2.jar'
    }
    task A3jar(type: Jar) {
        archiveFileName = 'A3.jar'
    }
    artifacts {
        configOne A1jar
        configTwo A2jar
        configTwo A3jar
    }
}

project(':b') {