The repository contains a simple Java application which outputs the string "Hello world!" and is accompanied by a couple of unit tests to check that the main application works as expected. The results of these tests are saved to a JUnit XML report.
jenkins directory contains an example of the
Jenkinsfile (i.e. Pipeline)
you'll be creating yourself during the tutorial and the
contains a shell script with commands that are executed when Jenkins processes
the "Deliver" stage of your Pipeline.