Implementation of the "State Machine" pattern.
It makes easy to develop services where entities have
finite number of states and set of transition rules from
one state to another.
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 state-machine-parent-0.4.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
