robert walker [http://community.jboss.org/people/robertwalker] created the discussion "Re: jboss7 quickstarts entitymanager injection question" To view the discussion, visit: http://community.jboss.org/message/635433#635433 -------------------------------------------------------------- thanks for the reply i must be missing someting, each example, login or kitchensink has there own persistence.xml file which gives the PU a name, whcih i would think would be needed by the class in the src code injecting the EntityManager. for login's  persistence.xml <persistence-unit name="loginDatabase">       <provider>org.hibernate.ejb.HibernatePersistence</provider>       <jta-data-source>java:jboss/datasources/ExampleDS</jta-data-source> and for kitchsink  persistence.xml <persistence-unit name="primary">       <!-- If you are running in a production environment, add a managed          data source, the example data source is just for proofs of concept! -->       <jta-data-source>java:jboss/datasources/ExampleDS</jta-data-source> but neither of the managed beans use code to inject a PU named "loginDatabase" or "primary"  -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/635433#635433] Start a new discussion in JBoss AS7 Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]