pf4j/demo_gradle/api/build.gradle

dependencies {
    compile group: 'org.pf4j', name: 'pf4j', version: "${pf4jVersion}"
    compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.5'

    testCompile group: 'junit', name: 'junit', version: '4.+'
}