Java EE 6 Webapp
· An archetype that generates a starter Java EE 6 webapp project for JBoss AS 7 (by default) or EAP 6 (if the "enterprise" property is true)
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 jboss-javaee6-webapp-archetype-blank-7.0.2.CR2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.