WildFly: EE clustering
· These modules contain interfaces and implementations that are common to the wildfly-clustering-ejb and wildfly-clustering-web modules.
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 wildfly-clustering-ee-29.0.1.Final.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.