The gbp-renderer (Group-Based Policy renderer) is a sub-project for the Network Intent Compisition (NIC). Its goal is to add GBP support for the NIC project.
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 gbp-renderer-aggregator-1.0.4-Lithium-SR4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
