Example build gradle

build.gradle

plugins {
  id 'java-library'
}
repositories {
  mavenCentral()
}
configurations {
  myCustomConfig
}
dependencies {
  compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.11'
  compile group: 'commons-io', name: 'commons-io', version: '2.8.0'
  myCustomConfig group: 'commons-io', name: 'commons-io', version: '2.8.0'
}
sourceSets {
  main.java.srcDir "src/main"
}
jar {
  from configurations.compile.collect { zipTree it }
  manifest.attributes "Main-Class": "net.hello.Main"
}