This illustration shows the structure of a J2EE CMP bean application. The CMP EJB module JAR contains the orion-ejb-jar.xml file: because there are CMP entity EJB, the orion-ejb-jar.xml file must contain persistence-manager subentries. In this case, there is no domain module JAR file. The contents of the project.xml file is in the toplink-ejb-jar.xml file. There is no sessions.xml file because the TopLink runtime creates, configures, and acquires a session internally based on the orion-ejb-jar.xml file persistence-manager subentries.