Documentation on http://graphwalker.org/
Build and install GraphWalker modules locally on your machine
git clone https://github.com/GraphWalker/graphwalker-project.git
cd graphwalker-project
mvn install
mvn package -pl graphwalker-cli -am
The jar is in:
graphwalker-cli/target/graphwalker-cli-4.0.0-SNAPSHOT.jar