Packages
javax.ejb Contains the Enterprise JavaBeans classes and interfaces that define the contracts between the enterprise bean and its clients and between the enterprise bean and the EJB container.
javax.ejb.embeddable Defines the classes for the EJB 3.1 Embeddable API.
javax.ejb.spi Defines interfaces that are implemented by the EJB container.
javax.interceptor Contains annotations and interfaces for defining interceptor methods, interceptor classes and for binding interceptor classes to target classes.