We use GAE mainly as the back-end data store to keep the
transient states and data of CloudMoV, including users’ online
presence status, social messages (invitation and chat messages)
in all the sessions. With Jetty as the underlying Servlet container,
most Java-based applications can be easily migrated to
GAE, under limited usage constraints, where no platform-specific
APIs are enforced for the deployment. GAE provides both