Mimic Parent
· Mimicing is, indeed, kind of way to bypass java single inheritance paradigm. It allows to copy all declared fields, constructors and methods in a given class into another class.
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 mimic-parent-1.0.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.