WildFly: EE Feature Pack Product Configuration
· Provides an artifact whose MANIFEST.MF includes entries that provide installation name and version information.
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-ee-feature-pack-product-conf-31.0.0.Beta1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.