Pay attention to the three modules:

1. client - a simple client built using JavaFX and OCSF. We use EventBus (which implements the mediator pattern) in order to pass events between classes (in this case: between SimpleClient and PrimaryController).
2. server - a simple server built using OCSF.
3. entities - a shared module where all the entities of the project live.

1. Run Maven install in the parent project.
2. Run the server using the exec:java goal in the server module.
3. Run the client using the javafx:run goal in the client module.
4. Press the button and see what happens!