Notification Event management server feature
· This feature contains the core bundles required for Back-end functionality of Notification-Event-Handling
management
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 org.wso2.carbon.event.handler.notification.server.feature-1.7.11.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.