Prerequisites: JDK (Java SE Development Kit) 8+, Apache Maven 3.3+.
Download the latest API Test Base release source code from here to your local machine. Extract it, cd to the root directory (in which there is README.md), and run below Maven command
mvn clean package -P prod
apitestbase-assembly/dist folder is created containing the files and folders.
Notice that if this is the first time you build API Test Base, it could take 10 minutes (depending on your network speed) for Maven to download all the dependencies. From the second time, you should see the build time decreased to around 30 seconds, as the dependencies are already in your Maven local repository.