gradle build system
https://www.baeldung.com/ant-maven-gradle
https://stackoverflow.com/questions/11474729/how-to-build-sources-jar-with-gradle
docs.gradle.org/current/userguide/building_java_projects.html
docs.gradle.org/current/dsl/org.gradle.api.tasks.SourceSet.html
stackoverflow:how-to-add-local-jar-file-dependency-to-build-gradle-file
docs.gradle.org/current/dsl/org.gradle.api.tasks.SourceSet.html
docs.gradle.org/current/userguide/organizing_gradle_projects.html
baeldung.com/gradle-run-java-main
: How to invoke a java task
Gradle.org:JavaExec.html
http://sorcersoft.org/.../more_about_tasks.html
Dependencies etc.
Links for Junit
junit.org/junit5/docs/current/user-guide/#writing-tests
https://www.petrikainulainen.net/programming/testing/junit-5-tutorial-running-unit-tests-with-gradle/
https://stackoverflow.com/questions/20707017/how-to-run-junit-tests-with-gradle
Links for Docu with gradle
jaxenter.de/asciidoc-gradle-eclipse-75169
docs.gradle.org/current/dsl/org.gradle.api.tasks.javadoc.Javadoc.html
asciidoctor.org/docs/asciidoctor-gradle-plugin/
https://asciidoctor.org/docs/user-manual/
https://asciidoctor.org/docs/asciidoc-writers-guide