List 3rd party Java libraries that should be installed to lib/jars.
These libraries are not embedded in fat jars produced by bundle-plugin's 'assemble-fat-jar' goal.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window vespa-3party-jars-8.216.8.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
