Hey, I have the following problem. I need to create a new EntityManagerFactory and rebind it to the JNDI: EntityManagerFactory emf = new Ejb3Configuration().setProperty( | "hibernate.connection.datasource", "java:/DefaultDS").setProperty( | "hibernate.hbm2ddl.auto", "create").setProperty("hibernate.show_sql", "true") | .addAnnotatedClass(Hotel.class).addAnnotatedClass(Room.class) | .buildEntityManagerFactory(); | new InitialContext().rebind("java:/sample3", emf); I need that this code will be thread safe, because i dont want that 2 threads simultaneously will create the same EntityManagerFactory . How can I do it in a stateless? Thank you View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4048923#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...