extremum-common module parent
· This module is used as a parent for any extremum-common module.
If you are looking for a parent for your application, please use extremum-app-parent.
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 extremum-module-parent-3.2.0-rc.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.