Creating an Entry Point
A GWT module entry point is any class that can be assigned to
EntryPoint and can be constructed without parameters. When a module is loaded, every entry point class is instantiated and its
EntryPoint.onModuleLoad() method is called.
To generate an entry point
In the Project view, right-click the client package.
From the context menu, select.
Specify the name of the entry point and click OK.