A product hands the runtime off to an application, which can be thought of as a custom Eclipse
Runnable class. This is the main entry point to the application which is responsible for setting up and tearing down the content of the application.
com.packtpub.e4.headless.application. Ensure that the This plug-in will make contributions to the UI checkbox is deselected and Would you like to create a rich client application is set to No: