When I use in ejb-jar.xml: <enterprise-beans> <ejb-name>StartupEjb</ejb-name> <ejb-class>StartupEjb</ejb-class> <post-construct> <lifecycle-callback-method> onStart </lifecycle-callback-method> </post-construct> </enterprise-beans> and my EJB structure is: //The business interface @Remote public interface IStartup { void login(); } //The "general" base class for all EJB´s public abstract class AbstractEjb { public void onStart() { System.out.println("NOW STARTING UP"); } } //The EJB @Stateless public class StartupEjb extends AbstractEjb implements IStartup { public String sayHello(String nome) { return "Hello " + nome; } } When this package is deployed, the log bellow was generated: 18:01:05,546 WARN [JmxKernelAbstraction] jboss.j2ee:jar=startup-ejb.jar,name=StartupEjb,service=EJB3 is not registered 18:01:05,703 WARN [Ejb3DescriptorHandler] No method found within StartupEjb with name onStart with the right signature for post-construct-m ethodwas found 18:01:05,828 INFO [JmxKernelAbstraction] creating wrapper delegate for: org.jboss.ejb3.stateless.StatelessContainer 18:01:05,828 INFO [JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=startup-ejb.jar,name=StartupEjb,service=EJB3 with dependencies: 18:01:05,843 INFO [EJBContainer] STARTED EJB: StartupEjb ejbName: StartupEjb 18:01:05,890 INFO [EJB3Deployer] Deployed: file:/C:/freeTools/jboss-4.2.2.GA/server/default/deploy/startup-ejb.jar If I use de @PostConstruct over the AbstractEjb#onStart() method or if I override onStart() method in StartupEjb, all works fine. Is it a bug or some mistake ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4136468#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...