gradle
Open source build automation system
Install on Slackware
   1 cd /usr/local
   2 wget https://services.gradle.org/distributions/gradle-3.2.1-bin.zip
   3 unzip -t gradle-3.2.1-bin.zip
   4 unzip gradle-3.2.1-bin.zip
   5 cd /usr/local/gradle-3.2.1/bin
   6 ./gradle 
   7 cd ..
   8 ln -s gradle-3.2.1 gradle
   9 nano /etc/profile # add to PATH the /usr/local/gradle/bin
  10 . /etc/profile
Example console app
build.gradle
apply plugin: 'application'
mainClassName = "org.allowed.bitarus/Hello"
apply plugin: 'java'
repositories {
    mavenCentral()
}
dependencies {
}
jar {
    baseName = "hello"
    version = "0.1.0"
    manifest {
        attributes 'Implementation-Title': baseName,
                   'Implementation-Version': version,
                   'Main-Class': mainClassName
    }
}
