Packages
com.sun.im.desktop Sun Messenger Beans API   Overview The goal of the Sun Messenger Beans API is to allow developers to extend the Sun Messenger user interface.
com.sun.im.provider Sun ONE Instant Messaging Service Provider Interfaces

Sun ONE Instant Messaging supports the following types of service provider modules: Authentication/SSO providers and message archive providers.
com.sun.im.service Sun ONE IM Service API   Overview Sun ONE Instant Messaging allows users to communicate in real-time, using the Conference, Presence, News and Notification services.