The Vaadin base package. Contains the Application class, the starting point of any application that uses Vaadin.

Contains all Vaadin core classes. A Vaadin application is based on the {@link com.vaadin.Application} class and deployed as a servlet using {@link com.vaadin.server.ApplicationServlet} or {@link com.vaadin.server.GAEApplicationServlet} (for Google App Engine).

Vaadin applications can also be deployed as portlets using {@link com.vaadin.server.ApplicationPortlet2} (JSR-286).

All classes in Vaadin are serializable unless otherwise noted. This allows Vaadin applications to run in cluster and cloud environments.