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via Oracle Community by rickhoro, 1 year ago
application to work -- and everything does work. Does anyone know why this might be happening? Below see a partial listing of ShoppingCartBean.java, followed by the relevant section from server.log. [b]Partial ShoppingCartBean.java[/b] [code] @Stateful
java.lang.ClassNotFoundException: org.hibernate.ejb.EntityManagerImpl This makes no sense to me, however. This class is found in hibernate-entitymanager.jar, which is present in the root of the .ear file containing the application. Also, this class is needed for anything in the application to work -- and everything does work. Does anyone know why this might be happening? Below see a partial listing of ShoppingCartBean.java, followed by the relevant section from server.log. [b]Partial ShoppingCartBean.java[/b] [code] @Stateful @Scope(ScopeType.SESSION) @Name("shoppingCartBean") public class ShoppingCartBean implements com.unclejoes.ejb.ShoppingCartLocal {         @In(create = true, required = false)     protected transient FacesMessages facesMessages;         private enum ShoppingStatus {SHOP, CHECKOUT, ORDER_CONFIRMATION, AUTH_COMPLETED};         private ShoppingStatus shoppingStatus = ShoppingStatus.SHOP;         private Result ccResult = null;         /** Used for the user to select whether the payment address is the same or      *  different from the shipping address. */     private enum AddressOption { sameAsShipAddress, differentFromShipAddress };         private AddressOption addressOption = AddressOption.sameAsShipAddress;         @PersistenceContext(type=PersistenceContextType.EXTENDED)     EntityManager em;         @EJB     private UtilityLocal _utilityFacade;         //(scope=ScopeType.SESSION)     @Out     Order cartOrder = new Order();         // This variable is used to store a successful order for use in print screen.     @Out(scope=ScopeType.SESSION)     Order previousCartOrder = new Order();         //@In(create=true)     //@Out(scope=ScopeType.CONVERSATION)     @Out(scope=ScopeType.SESSION)     private User user = new User();         //@Out(scope=ScopeType.CONVERSATION)     @Out(scope=ScopeType.SESSION)     private CreditCard creditCard = new CreditCard();         @In     private Locale locale;         /** Creates a new instance of ShoppingCartBean */     public ShoppingCartBean() {     }    ... [/code] [b]Extract from server.log[/b] [#|2007-09-26T20:24:24.881-0500|SEVERE|sun-appserver9.1|javax.enterprise.system.container.ejb|_ThreadID=29;_Thr eadName=ContainerBackgroundProcessor[StandardEngine[com.sun.appserv].StandardHost[server].StandardContext[]];90 7f0100001f-43590adc-49e;_RequestID=5499b02d-6e8b-48f9-a5ff-071750e77915;|EJB5128:Error during Stateful Session Bean activation for key [907f0100001f-43590adc-49e]|#] [#|2007-09-26T20:24:24.881-0500|SEVERE|sun-appserver9.1|javax.enterprise.system.container.ejb|_ThreadID=29;_Thr eadName=ContainerBackgroundProcessor[StandardEngine[com.sun.appserv].StandardHost[server].StandardContext[]];_R equestID=5499b02d-6e8b-48f9-a5ff-071750e77915;|sfsb activation error. Key: 907f0100001f-43590adc-49e javax.ejb.EJBException: Couldn't create EntityManager for refName: com.unclejoes.ejb.ShoppingCartBean/em
    at com.sun.ejb.containers.StatefulSessionContainer.repopulateEEMMapsInContext(StatefulSessionContainer. java:2141)	at com.sun.ejb.containers.StatefulSessionContainer.activateEJB(StatefulSessionContainer.java:2040)	at com.sun.ejb.containers.util.cache.LruSessionCache.lookupEJB(LruSessionCache.java:281)	at com.sun.ejb.containers.StatefulSessionContainer._getContext(StatefulSessionContainer.java:1211)	at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:1675)	at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1229)