Mule Kernel
· Mule is the runtime engine of Anypoint™ Platform. It is the industry’s only unified platform that combines data and application integration across legacy systems, SaaS applications, and APIs with hybrid deployment options for maximum flexibility.
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 mule-3.9.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.