You are looking at documentation for an older release. Not what you want? See the current release documentation.
Follow these steps to deploy and test your new action extension:
Build the project by the command: mvn clean install
Copy the target/example-1.0.jar
file into the $PLATFORM_TOMCAT_HOME/lib
directory.
Start eXo Platform and go to the Wiki portlet. You will see your action in the More menu as below: