The Eclipse Jemo maven archetype
· The maven archetype that helps to create an Eclipse Jemo application with the proper pom file and an example class per Jemo development pattern.
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 eclipse-jemo-maven-archetype-1.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.