Application Security 5.0 (Jakarta Security 3.0)
· This feature enables support for securing the server runtime environment and applications using Jakarta Security 3.0.
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 appSecurity-5.0-23.0.0.8.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.