Session bean lookup during MBean registration

1 Timer Session bean is created but not started.
1 static MBean is declared in orion-application.xml
In the MBean constructor, a JNDI lookup is done on the timer session bean to start the timer (method from the Timer session bean)
The JNDI lookup fails !!
Is it possible to call a session bean from an MBean constructor ??
It seems to be the same pb when i try to access a JNDI ressource (db) from any MBean constructor.
Is there a way (post construct) to access JNDI or session bean after MBean registration ?

javax.naming.Context c = new
text c = new javax.naming.InitialContext();
ejb.ejbCustomerDbLocalHome rv =
calHome rv = (ejb.ejbCustomerDbLocalHome)
c.lookup("ejb/ejbCustomerDbBean");
ejb.ejbCustomerDbLocalHome rv = (ejb.ejbCustomerDbLocalHome)c.lookup("java:/comp/env/ejb/ejbCustomerDbBean");

Similar Messages

Ejb3 session bean lookup

Hello, I have following problem with the ejb3 and session bean lookup:
For example, I have a session bean with some dummy method, i.e. getInfo() :
@Stateless
public class MySessionBean implements MySessionLocal {
public String getInfo() {return "Hello from Session bean";}
When I lookup and use this bean in servlet in the following way, everything is OK:
public class MyServlet extends HttpServlet {
@EJB() MySessionLocal mySession;
protected void doPost(HttpServletRequest request, HttpServletResponse response) {
out.println(mySession.getInfo());
On the other side, when I create some java bean object as a facade, import and use it in servlet , it doesn't work:
public class Facade {
@EJB() MySessionLocal mySession;
public String getInfo() { return mySession.getInfo();}
public class MyServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) {
Facade myFacade = new Facade();
out.println(myFacade.getInfo());
When servlet runs and gets to the command myFacade.getInfo(), NullPointerException is thrown, because mySession object in myFacade is null (ejb lookup method probably fails to perform...)
I'm trying to use Facade to be able to use my Session Bean in JSP pages, i.e. to do something like <jsp:useBean id="myFacade" class="Facade" ...>
Could someone clarify why lookup doesn't work in javabean object, despite the fact that it works in servlets?
P.S. I'm running the latest promoted build (b31) of GlassFish (maybe this is the cause) and NetBeans IDE...

Hi,
Please try this ... http://weblogic-wonders.com/weblogic/2009/08/16/weblogic-10-3-ejb3-local-lookup-sample/ (Lookup from JSP)
and
http://weblogic-wonders.com/weblogic/2009/08/15/hello-world-2/ (Lookup/Injection from Servlet)
Thanks
Jay SenSharma

Local session bean lookup in another local session bean in EJB 3.0

Hi,
I am doing JNDI lookup of a local session bean in a session bean. ( I do not want to use EJB dependency injection).
Lookup of local interface from session bean is successful. But, when the calling session bean is a local session in another session bean, the lookup fails.
Here is an example:
@Stateless
@EJBs({@EJB(name="EJB2Local", beanInterface=EJB2Local.class),
@EJB(name="EJB3Local", beanInterface=EJB3Local.class)})
public class EJB1 implements EJB1Remote, EJB1Local{
public void findEJB3Local(){
//1. JNDI lookup for EJB3Local ----
//2. EJB3Local.someFunction()
@Stateless
@EJB(name="EJB1Local", beanInterface=EJB1Local.class)
public class EJB2 implements EJB2Remote, EJB2Local{
public void findEJB1Local(){
//1. JNDI lookup EJB1Local
// 2. Call EJB1Local.findEJB1Local method
//THIS METHOD CALL WILL FAIL.
public void findEJB1Remote(){
//1. JNDI lookup EJB1
/ 2. Call EJB1Local.findEJB1 method
@Stateless
public class EJB3 implements EJB3Remote, EJB3Local{
public void someFunction(){}
This setup was working in EJB 2.1, as we had clear ejb-local-ref definitions in our ejb-jar.xml file.
I am suspecting that EJB 3.0 has special annotation to use when lookup is made from another local session bean.
Any comments will be appreciated.
Thanks,
Mohan

From a private component environment perspective, declaring @EJB in a bean class is equivalent
to using ejb-ref or ejb-local-ref for that same bean in ejb-jar.xml. In each case, the EJB dependency
is declared for that bean. Each EJB component has its own private component environment, so
code running within invocations on different EJBs can not see the component environment of the
components that made the invocations.
What exact error are you getting? Please post the stack trace if possible.
--ken

Stateless Session Bean lookup truble on standalone OC4J (9.0.3)

Hi all,
I've folowing truble:
I deploy my app, start browser and get an Excwption
javax.naming.NamingException: Error instantiating web-app JNDI-context: No location specified and no suitable instance found for the ejb-ref 'ejb/ActivationSessionHome', an EJB with matching home and remote name was found, but it was an Entity, not a Session.
If I deploy my Session Bean as Entity the Exception ended:
..., but it was a Session, not an Entity.
Please help me understand and fix this %-(
Thanks.

Hi Vladimir,
I understand that you are trying to access a session bean from a servlet where both the session bean and servlet are part of the same J2EE application that you have deployed to (stand-alone) OC4J. If this is correct, then have you seen the following tutorial (which does exactly the same thing):
http://kb.atlassian.com/content/tutorials/jollem/orion-primer/
Hope this helps you.
Good Luck,
Avi.

Can't lookup session bean in MBean and ApplicationLifeCyleListener

Hi,
i am migrating an application with mbean from OC4J to weblogic 10.3.2.
as my application don't have a web module. i try to use the ApplicationLifeCycleListener
to register the mbean (instruction from this oracle document page:
http://download.oracle.com/docs/cd/E12839_01/web.1111/e13729
/instmbeans.htm#i1099957).
i register the mbean in the ApplicationLifeCycleListener.postStart method, but in the
mbean's method (which is called by a javax.management.timer.Timer, created in the
MBeanRegistration.postRegister method), i can't lookup the session bean.
(i try to lookup the session bean in the ApplicationLifeCycleListener.postStart method, it fails too)
if i register the mbean in a ServletContextListener, there is NO problem that i can
lookup session bean in the mbean's method.
why there is inconsistence in registrating mbean by servlet context listerer and by
applicationlifecyclelistener???
can anybody tell me the solution???
is it impossible to call session bean in the MBean's method if the mbean is registered
in the ApplicationLifeCycleListener ???
*** i want to call a session bean's method periodically through the timer ***
thank you very much.

gimbal2 wrote:
r035198x wrote:
I put the interfaces in a separate XX-si-jar file always.
The implementation jar then depends on that service interface jar which gets deployed on both the client and the server.
This way I can distribute my si without including implementation which I can change without needing to affect the clients.Yeah, that seems like the only real solution to me. Using Maven it shouldn't be that hard to manage either now that I think about it. Did you ever get into trouble with a client being based on an outdated interface jar? I can imagine that it can be a bit of a release management drama to keep these things synced.Interface changes when they did happen resulted in full redeployments because the client usually has to change anyway to use the changed functionality. Most interactions are through static interfaces so this doesn't arise too much.
In volatile interactions, a common approach is to define a generic interface EJB whose implementation can delegate the calls to other (potentially future) services. The problem with this is that return types have to be simple.
>
It's one of the reasons why I'm not a fan of optional interfaces in 3.1.Well the optional part is optional ;) To me it is a very useful addition since I usually only deal with local interfaces when I use EJB technology. I always found it a bit of a bother to HAVE to create an interface also, I welcome the change.It is handy to be able to roll out an app with a few classes all bundled in one deployment file if there is no requirement for multiple implementations of an interface or for remote invocation support.
I just feel that it's a lot of flexibility to sacrifice when doing the interfaces is not really a lot of effort with today's development tools.

EJB3 Session Bean from webproject (Netbeans 5.5.1 with Visual Web)

I've been using J2EE 2 Sessoin Beans for some time but looking into moving into the new JavaEE EBJ3. I'm attempting to create a new enterprise project in netbeans and instead of using the web project that it creates I've created a visual web project and attached it to the enterprise project. Everything works great other than the fact that I cannot looking any Session Beans in my context. The logic that is calling the session bean lookup in the Bean of the webpage using JSF. Upon an action being called I'm attempting to lookup the session bean but I get name NameNotFound everyway I try. Below is the sample code. I'm trying injection but it doesn't appear to work from with the JSF Model Bean.
* Page1.java
* Created on September 1, 2007, 1:00 AM
* Copyright smileyq
package demo;
import com.demo.aps.ejb.session.AuthenticationManagerLocal;
import com.demo.aps.ejb.session.HelloWorldLocal;
import com.demo.aps.model.AuthCredentials;
import com.sun.rave.web.ui.appbase.AbstractPageBean;
import com.sun.rave.web.ui.component.Body;
import com.sun.rave.web.ui.component.Button;
import com.sun.rave.web.ui.component.Form;
import com.sun.rave.web.ui.component.Head;
import com.sun.rave.web.ui.component.Html;
import com.sun.rave.web.ui.component.Link;
import com.sun.rave.web.ui.component.Page;
import com.sun.rave.web.ui.component.PasswordField;
import com.sun.rave.web.ui.component.StaticText;
import com.sun.rave.web.ui.component.TextField;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.faces.FacesException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
* Page bean that corresponds to a similarly named JSP page. This
* class contains component definitions (and initialization code) for
* all components that you have defined on this page, as well as
* lifecycle methods and event handlers where you may add behavior
* to respond to incoming events.
public class Page1 extends AbstractPageBean
 // <editor-fold defaultstate="collapsed" desc="Managed Component Definition">
 private int __placeholder;
 @EJB private HelloWorldLocal hwLocalRef;
 * Automatically managed component initialization. WARNING:
 * This method is automatically generated, so any user-specified code inserted
 * here is subject to being replaced.
 private void _init () throws Exception
 private Page page1 = new Page ();
 public Page getPage1 ()
 return page1;
 public void setPage1 (Page p)
 this.page1 = p;
 private Html html1 = new Html ();
 public Html getHtml1 ()
 return html1;
 public void setHtml1 (Html h)
 this.html1 = h;
 private Head head1 = new Head ();
 public Head getHead1 ()
 return head1;
 public void setHead1 (Head h)
 this.head1 = h;
 private Link link1 = new Link ();
 public Link getLink1 ()
 return link1;
 public void setLink1 (Link l)
 this.link1 = l;
 private Body body1 = new Body ();
 public Body getBody1 ()
 return body1;
 public void setBody1 (Body b)
 this.body1 = b;
 private Form form1 = new Form ();
 public Form getForm1 ()
 return form1;
 public void setForm1 (Form f)
 this.form1 = f;
 private StaticText staticText1 = new StaticText ();
 public StaticText getStaticText1 ()
 return staticText1;
 public void setStaticText1 (StaticText st)
 this.staticText1 = st;
 private TextField usernameTxt = new TextField ();
 public TextField getUsernameTxt ()
 return usernameTxt;
 public void setUsernameTxt (TextField tf)
 this.usernameTxt = tf;
 private PasswordField passwordTxt = new PasswordField ();
 public PasswordField getPasswordTxt ()
 return passwordTxt;
 public void setPasswordTxt (PasswordField pf)
 this.passwordTxt = pf;
 private Button loginBtn = new Button ();
 public Button getLoginBtn ()
 return loginBtn;
 public void setLoginBtn (Button b)
 this.loginBtn = b;
 // </editor-fold>
 * Construct a new Page bean instance.
 public Page1 ()
 * Callback method that is called whenever a page is navigated to,
 * either directly via a URL, or indirectly via page navigation.
 * Customize this method to acquire resources that will be needed
 * for event handlers and lifecycle methods, whether or not this
 * page is performing post back processing.
 * Note that, if the current request is a postback, the property
 * values of the components do not represent any
 * values submitted with this request. Instead, they represent the
 * property values that were saved for this view when it was rendered.
 public void init ()
 // Perform initializations inherited from our superclass
 super.init ();
 // Perform application initialization that must complete
 // *before* managed components are initialized
 // TODO - add your own initialiation code here
 // <editor-fold defaultstate="collapsed" desc="Managed Component Initialization">
 // Initialize automatically managed components
 // *Note* - this logic should NOT be modified
 try
 _init ();
 catch (Exception e)
 log ("Page1 Initialization Failure", e);
 throw e instanceof FacesException ? (FacesException) e: new FacesException (e);
 // </editor-fold>
 // Perform application initialization that must complete
 // *after* managed components are initialized
 // TODO - add your own initialization code here
 * Callback method that is called after the component tree has been
 * restored, but before any event processing takes place. This method
 * will only be called on a postback request that
 * is processing a form submit. Customize this method to allocate
 * resources that will be required in your event handlers.
 public void preprocess ()
 * Callback method that is called just before rendering takes place.
 * This method will only be called for the page that
 * will actually be rendered (and not, for example, on a page that
 * handled a postback and then navigated to a different page). Customize
 * this method to allocate resources that will be required for rendering
 * this page.
 public void prerender ()
 * Callback method that is called after rendering is completed for
 * this request, if <code>init()</code> was called (regardless of whether
 * or not this was the page that was actually rendered). Customize this
 * method to release resources acquired in the <code>init()</code>,
 * <code>preprocess()</code>, or <code>prerender()</code> methods (or
 * acquired during execution of an event handler).
 public void destroy ()
 * Return a reference to the scoped data bean.
 protected SessionBean1 getSessionBean1 ()
 return (SessionBean1)getBean("SessionBean1");
 * Return a reference to the scoped data bean.
 protected RequestBean1 getRequestBean1 ()
 return (RequestBean1)getBean("RequestBean1");
 * Return a reference to the scoped data bean.
 protected ApplicationBean1 getApplicationBean1 ()
 return (ApplicationBean1)getBean("ApplicationBean1");
 public String loginBtn_action ()
 // TODO: Process the button click action. Return value is a navigation
 // case name where null will return to the same page.
 AuthCredentials credentials = new AuthCredentials();
 credentials.setUsername (usernameTxt.getText ().toString ());
 credentials.setPassword (passwordTxt.getText().toString ());
 hwLocalRef.printHello ();
 return null;
}

Hi,
I've had the very same problem with RAD.
Try to set the Transaction attribute to SUPPORTS. With SUPPORTS the EJB method will use the same transaction as the caller.
package hu.bme.ett.raktar.facade;
import hu.bme.ett.raktar.ejbs.Raktar;
import hu.bme.ett.raktar.ejbs.controller.RaktarManager;
import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
@Stateless
@TransactionAttribute(TransactionAttributeType.SUPPORTS)
public class RaktarListazas implements RaktarListazasLocal {
 RaktarManager rm = new RaktarManager();
 * Default constructor.
 public RaktarListazas() {
 // TODO Auto-generated constructor stub
 public Raktar getRaktar(long raktId) {
 return rm.findRaktarByRaktId(raktId);
 public void createRaktar(long raktId) {
 Raktar r = new Raktar();
 r.setRaktId(raktId);
 r.setRaktAzonosito("Y1RAK-01" + raktId);
 r.setMegnevezes("Elso raktaram");
 try {
 rm.createRaktar(r);
 } catch (Exception e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
}Cheers,
Viktor

StreamCorruptedException from Stateless Session bean to java class

Hi all,
We have 2 servers, a ColdFusion App server which contains suns jdk 1.4.2 and websphere appserver using Ibm jdk, 1.4.2. On Server 1, we have a standalone java class which does a stateless session bean lookup and requests a service from it. On server 2(websphere), we have a stateless session bean deployed which connects to a database using a jndi lookup, executes a query and returns back a CachedRowSet object (which populates the ResultSet from the above query.) In some cases, session bean returns back an array of objects or String objects or just plain int values.
When the java class on server 1 invokes the methods returning CachedRowSet, we are getting a StreamCorruptedException, whereas on the server side, there is no exception. everything gets executed fine on websphere. This is the case only for CachedRowSet and not for other return types(as mentioned earlier the session bean returns an array of object in some cases which the java class on server 1 is successfully able to use).
This is what the piece of code look like on server 1:
// First gets a StatelessSessionBean using suns InitialContextFactory
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
env.put(Context.PROVIDER_URL,"iiop://localhost:2809");
System.out.println("Creating initial context");
Context ctx = new InitialContext(env);
System.out.println("Initial context created.");
Object homeObj = ctx.lookup("cell/nodes/localhost/servers/server1/ejb/SSBHome");
SSBHome eHome = (SSBHome)PortableRemoteObject.narrow(homeObj,SSBHome.class);
System.out.println("Got Home");
SSB eBean = eHome.create();
CachedRowSet crs = eBean.getAccts(param1, param2);
//This is the line of code which throws the exception.
The stacktrace shoows as follows:
Got Home
java.io.StreamCorruptedException
 at com.sun.corba.se.internal.io.IIOPInputStream.inputRemoteMembersForReadFields(IIOPInputStream.java:1675)
 at com.sun.corba.se.internal.io.IIOPInputStream.readFields(IIOPInputStream.java:1595)
 at com.sun.corba.se.internal.io.InputStreamHook.readFields(InputStreamHook.java:177)
 at java.math.BigInteger.readObject(BigInteger.java:3034)
 at com.sun.corba.se.internal.io.IIOPInputStream.readObject(Native Method)
 at com.sun.corba.se.internal.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java:1298)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:908)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:261)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1484)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:1893)
 at com.sun.corba.se.internal.io.IIOPInputStream.defaultReadObjectDelegate(IIOPInputStream.java:424)
 at com.sun.corba.se.internal.io.InputStreamHook.defaultReadObject(InputStreamHook.java:163)
 at java.math.BigDecimal.readObject(BigDecimal.java:1084)
 at com.sun.corba.se.internal.io.IIOPInputStream.readObject(Native Method)
 at com.sun.corba.se.internal.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java:1298)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectUsingFVD(IIOPInputStream.java:1182)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:259)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:948)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:289)
 at com.sun.corba.se.internal.corba.TCUtility.unmarshalIn(TCUtility.java:266)
 at com.sun.corba.se.internal.corba.AnyImpl.read_value(AnyImpl.java:561)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_any(CDRInputStream_1_0.java:635)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_any(CDRInputStream.java:260)
 at com.sun.corba.se.internal.javax.rmi.CORBA.Util.readAny(Util.java:100)
 at javax.rmi.CORBA.Util.readAny(Util.java:90)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.read_Array(ValueHandlerImpl.java:586)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:244)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1577)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:1796)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:913)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:261)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:948)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:289)
 at com.sun.corba.se.internal.corba.TCUtility.unmarshalIn(TCUtility.java:266)
 at com.sun.corba.se.internal.corba.AnyImpl.read_value(AnyImpl.java:561)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_any(CDRInputStream_1_0.java:635)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_any(CDRInputStream.java:260)
 at com.sun.corba.se.internal.javax.rmi.CORBA.Util.readAny(Util.java:100)
 at javax.rmi.CORBA.Util.readAny(Util.java:90)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.read_Array(ValueHandlerImpl.java:586)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:244)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1577)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:1796)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:913)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:261)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1577)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:1796)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:913)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:261)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.EJBProj._SSB_Stub.getAccts(_SSB_Stub.java:240)
 at com.test.Test1.getAccts(Test1.java:101)
 at com.test.Test1.<init>(Test1.java:65)
 at com.test.Test1.main(Test1.java:81)
java.io.IOException: Unable to read value from underlying bridge : Serializable readObject method failed internally
 at com.sun.corba.se.internal.io.IIOPInputStream.throwExceptionType(Native Method)
 at com.sun.corba.se.internal.io.IIOPInputStream.defaultReadObjectDelegate(IIOPInputStream.java:446)
 at com.sun.corba.se.internal.io.InputStreamHook.defaultReadObject(InputStreamHook.java:163)
 at java.math.BigDecimal.readObject(BigDecimal.java:1084)
 at com.sun.corba.se.internal.io.IIOPInputStream.readObject(Native Method)
 at com.sun.corba.se.internal.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java:1298)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectUsingFVD(IIOPInputStream.java:1182)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:259)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:948)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:289)
 at com.sun.corba.se.internal.corba.TCUtility.unmarshalIn(TCUtility.java:266)
 at com.sun.corba.se.internal.corba.AnyImpl.read_value(AnyImpl.java:561)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_any(CDRInputStream_1_0.java:635)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_any(CDRInputStream.java:260)
 at com.sun.corba.se.internal.javax.rmi.CORBA.Util.readAny(Util.java:100)
 at javax.rmi.CORBA.Util.readAny(Util.java:90)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.read_Array(ValueHandlerImpl.java:586)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:244)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1577)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:1796)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:913)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:261)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:948)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:289)
 at com.sun.corba.se.internal.corba.TCUtility.unmarshalIn(TCUtility.java:266)
 at com.sun.corba.se.internal.corba.AnyImpl.read_value(AnyImpl.java:561)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_any(CDRInputStream_1_0.java:635)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_any(CDRInputStream.java:260)
 at com.sun.corba.se.internal.javax.rmi.CORBA.Util.readAny(Util.java:100)
 at javax.rmi.CORBA.Util.readAny(Util.java:90)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.read_Array(ValueHandlerImpl.java:586)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:244)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1577)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:1796)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:913)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:261)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1577)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:1796)
 at com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:913)
 at com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:261)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:247)
 at com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:209)
 at com.sun.corba.se.internal.iiop.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1084)
 at com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:293)
 at com.EJBProj._SSB_Stub.getAccts(_SSB_Stub.java:240)
 at com.test.Test1.getAccts(Test1.java:101)
 at com.test.Test1.<init>(Test1.java:65)
 at com.test.Test1.main(Test1.java:81)
Again, everything seems to work fine on websphere server.
Any Clue of why this is happening?
All suggestions are greatly appreciated.
Thanks
Neorav
Message was edited by:
NeoravB

Sorry for the confusion!
The solution mentioned above is not the right solution.
The above given code works fine irrespective of having corbaloc in the url, if you are working in the IBMs jvm.
It fails if you are working in suns jvm.
Anyone with any idea whats missing here.
Thanks a lot for any suggestion/ideas
Neorav

Create session bean using interfaces, not implementation classes

Hi,
I'm using interfaces and session beans for my persistence/data layer in my adf application.
I've created a data control for my session bean and during creation of this data control, javabean.xml files are created for the different interfaces that are used in my session bean.
If I create bindings on these methods, interfaces in jspx-documents I will get errors because he can't find the impl-classes that implement these interfaces.
When using interfaces in your session bean (as return values or parameters) instead of classes you need to manually create javabean.xml files for the implementation classes.
It's required by the databindings/datacontrol that the implementation-classes are described in a javabean-format as well? Is this a spec we need to adhere to?
Could someone verify that you need to create javabean.xml-files for as well the interfaces as the classes when you're working with interfaces in your session beans?
regards,
Nathalie

A patch was released by Oracle to be able to work with Interfaces and so it's not required to work with implementation-classes.
Patch for 5726754(Base bug 5657179)

How to lookup a EJB 3.0 session bean which is deployed in WebLogic 10.3

Now Jdeveloper 11.1.1, is giving WebLogic server 10.3.
With internal WebLogic server, when I created a Sample client, it generated code as:
private static Context getInitialContext() throws NamingException {
 Hashtable env = new Hashtable();
 // WebLogic Server 10.x connection details
 env.put( Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory" );
 env.put(Context.PROVIDER_URL, "t3://127.0.0.1:7101");
 return new InitialContext( env );
public static void main(String [] args) {
 try {
 final Context context = getInitialContext();
 DefaultSession defaultSession = (DefaultSession)context.lookup("property-DefaultSession#com.vs.property.model.session.DefaultSession");
 } catch (Exception ex) {
}How to update the above code to lookup the EJB 3.0 session beans with an external WebLogic server 10.3?
Is there any documentation available on how to install weblogic, troubleshoot, debug, WebLogic server 10.3?
regds
-raju

Raju,
Hi, to start, here is a tutorial on a quickstart web application using an EJB 3.0 stateless session bean that fronts a container managed EclipseLink JPA entity manager on WebLogic 10.3, you will find references there to other general WebLogic documentation.
[http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebLogic_Web_Tutorial]
using @EJB injection on the client instead of a JNDI lookup as below
[http://edocs.bea.com/wls/docs103/ejb30/annotations.html#wp1417411]
1) in your second env.put I noticed that your t3 port is 7101, I usually use the default 7001 - but It looks like this port is valid for the JDeveloper embedded version of WebLogic server runs - just verify that it matches the port of your server.
2) your name#qualified-name lookup looks ok. Verify that the jndi-name element is set in your weblogic-ejb-jar.xml for non injection clients like the following
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>ApplicationService</ejb-name>
<jndi-name>ApplicationService</jndi-name>
3) as a test outside of your application - launch the WebLogic admin console and goto the testing tab of your bean in [Home > Summary of Deployments > "application" > "session bean name"
thank you
/michael : http://www.eclipselink.org

Context.lookup in a Servlet always returns the same Stateful Session Bean

Hi,
I am working on an application in which a Servlet should obtain one StateFul Session Bean per client. I read in EJB 3.0 in Action that to do so I should use a jndi lookup and save the result of the lookup in an HttpSession. This works fine for me when I have a single client.
My issue is that when I have several clients, context.lookup returns the same SFSB for each client. This means that I end up having a single SFSB for the whole application. I've been browsing the web for a while now trying to find a solution but haven't had any luck yet.
The code I use to obtain and save the SFSB is the following:
HttpSession session = request.getSession(true);
DFMServiceRemote service = (DFMServiceRemote) session.getAttribute("DFMService");
if (null == service)
service = (DFMServiceRemote) new InitialContext().lookup("DFMService");
session.setAttribute("DFMService", service);
}Using different browser, I end up with different HttpSession but a single SFSB. The only workaround I found is to create the context with environment variables or properties. It then returns different SFSBs for different HttpSession. The workaround code is as below:
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.rmi.RMIInitialContextFactory");
env.put(Context.SECURITY_PRINCIPAL, "oc4jadmin");
env.put(Context.SECURITY_CREDENTIALS, "welcome");
env.put(Context.PROVIDER_URL, "ormi://localhost:23791/DriverFatigue");
service = (DFMServiceRemote) new InitialContext(env).lookup("DFMService");My question is the following. How can I get a different instance of an SFSB every time I execute context.lookup without specifying properties.
Thanks in advance for any help,
Matthieu Siggen

I just did something similar in another project using JBoss instead of oc4j and didn't have any problem. I expect I missed a configuration file in oc4j or there is a conflict somewhere.

How can i lookup a session bean from the client side

how can i lookup a session bean from the client side...........i am using sun appserver..............
this is my code.................[B]
private final static String JNDI_NAME="ejb/LmsBean";
private static String url="ldap://localhost:4848";
Hashtable h=new Hashtable();
h.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
h.put(Context.PROVIDER_URL,url);
System.out.println("Before Loading Context in Delegate");
Context ctx=new InitialContext(h);
System.out.println("Loaded Context in Delegate");
Object obj=ctx.lookup(JNDI_NAME);
System.out.println("Loaded Object in Delegate");
System.out.println("Before Loading Home in Delegate");
LmsHome home = (LmsHome )PortableRemoteObject.narrow(obj,com.parx.lms.controller.LmsHome.class);
System.out.println("Loaded Home in Delegate");
lms = home.create();
System.out.println("Loaded remote in Delegate");
[B]and i got the exception........
Inside Client before calling delegate
Before Loading Context in Delegate
javax.naming.CommunicationException: Request: 1 cancelled
javax.naming.CommunicationException: Request: 1 cancelled
at com.sun.jndi.ldap.LdapRequest.getReplyBer(LdapRequest.java:60)
at com.sun.jndi.ldap.Connection.readReply(Connection.java:405)
at com.sun.jndi.ldap.LdapClient.ldapBind(LdapClient.java:340)
at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:171)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2640)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:290)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:175)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:193
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.ja
va:136)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.jav
a:66)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
62)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243
at javax.naming.InitialContext.init(InitialContext.java:219)
at javax.naming.InitialContext.<init>(InitialContext.java:195)
at com.parx.lms.lmsdelegate.LmsDelegate.getController(LmsDelegate.java:3
0)
at com.parx.lms.lmsdelegate.LmsDelegate.addUserDelegate(LmsDelegate.java
:50)
at com.parx.lms.client.consoleClient.Client.main(Unknown Source)
pls go tru the exception and pls help.........

That url string should be having the server name or ip instead of localhost.

RMI server object lookup in a session bean

Hi all,
I am getting MarshalException when I call java.rmi.Naming.lookup() in a session
bean. Following is the code and exception. Please note that I am using java.rmi
package instead of weblogic.rmi and that both the session bean and RMI server
object (a startup class) is deployed on the same machine.
Thanks for your help in advance.
// a simple, replica-aware session bean method
// some code here
try {
MediatorInterface mediator = (MediatorInterface) java.rmi.Naming.lookup("rmi://localhost:7001/TestMediator);
catch (Exception e) {
// log the exception
The exception:
java.rmi.MarshalException: Error marshaling transport header; nested exception
i
s:
java.io.EOFException
java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:224)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:206
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:318)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at test.mgmtop.CreateNetworkOpHandler.execute(CreateNetworkOpHandler.jav
a:88)
at test.mgmtop.CreateNetworkOpHandler.perform(CreateNetworkOpHandler.jav
a:28)
at test.ejb.MgmtServiceBean.create(MgmtServiceBean.java:57)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl.create(MgmtServiceSession_i
di8yo_EOImpl.java:46)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl_WLSkel.invoke(Unknown Sourc
e)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:346)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerR
ef.java:114)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:300)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServic
eManager.java:762)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav
a:295)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
.java:30)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:152)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:133)

Hi Pyung,
How about trying this instead:
InitialContext ctx = new InitialContext();
MediatorInterface mediator = (MediatorInterface) ctx.lookup("TestMediator");
This assumes your startup class binds the Mediator to the JNDI name "TestMediator".
- Matt
Pyung Yoon wrote:
Hi all,
I am getting MarshalException when I call java.rmi.Naming.lookup() in a session
bean. Following is the code and exception. Please note that I am using java.rmi
package instead of weblogic.rmi and that both the session bean and RMI server
object (a startup class) is deployed on the same machine.
Thanks for your help in advance.
// a simple, replica-aware session bean method
// some code here
try {
MediatorInterface mediator = (MediatorInterface) java.rmi.Naming.lookup("rmi://localhost:7001/TestMediator);
catch (Exception e) {
// log the exception
The exception:
java.rmi.MarshalException: Error marshaling transport header; nested exception
i
s:
java.io.EOFException
java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:224)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:206
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:318)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at test.mgmtop.CreateNetworkOpHandler.execute(CreateNetworkOpHandler.jav
a:88)
at test.mgmtop.CreateNetworkOpHandler.perform(CreateNetworkOpHandler.jav
a:28)
at test.ejb.MgmtServiceBean.create(MgmtServiceBean.java:57)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl.create(MgmtServiceSession_i
di8yo_EOImpl.java:46)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl_WLSkel.invoke(Unknown Sourc
e)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:346)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerR
ef.java:114)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:300)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServic
eManager.java:762)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav
a:295)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
java:30)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:152)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:133)

JNDI lookup of a Stateless Session bean from another stateless session bean

Hi,
   I am working on SAP Netweaver. We have created a stateless session bean which is finally deployed as a webservice. From this stateless session bean we need to call another stateless session bean as a local reference.
    I have done the following.
1. Added JNDI-Name to the ejb-j2ee-engine.xml.
2. My lookup code is as follows
Context context = null;
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sap.engine.services.jndi.InitialContextFactoryImpl");
context = new InitialContext(env);
Object ejbObj =     context.lookup("MyBean");
But i get the NamingException .Here MyBean is the jndi-name provided in the ejb-j2ee-engine.xml.
Can somebody tell me what i am doing wrong.
Thanks
Priya

Hi,
    Thanks for your replies.I did as you had suggested.I added ejb-local-ref to the ejb-jar.xml and i provided ejb-ref as MyBean.
My lookup code uses the string
ctxt.lookup("localejbs\MyBean");
But still i get Naming Exception.
I tried something different yesterday.
I changed the code to use
InitialContext ctxt = new InitialContext();
ctxt.lookup("localejbs/"+ pathfromJNDIRegistry);
and this time i did not get Naming exception but i got RemoteException saying there was error loading the class.
Is there something i need to add somewhere for the classloader to be able to find and load this class in the second scenario.
Please suggest me which method to go for amongst the two and what is the missing information i need to add.
Thanks
Priya

Prob in IR :Internal error during bean lookup for bean RepObjectAccessBean

Hi,
I am facing the problem in IR .
Internal error during bean lookup for bean RepObjectAccessBean
is the Error window I am getting frequently, After getting this error, It is no allowing to open any of the IR Objects.
Thanks in advance,
Dhanabal T

Hi Dhanabal,
i got the same error. But it is clear.
Please chek once ur configuration part. The error is in configuration part only.
once check all the steps in ur configuration part.
REgards,
chandra.

Could not access Local Session Bean using JNDI lookup

Hi EJB Guru,
I am quite new to EJB 3.0 but have had a good deal of success including using JNDI to lookup Remote Stateless Session Bean in EJB 3.0. However, looking up local Stateless Session Bean prove more challenging with I had anticipated.
Here is my code
as follows:
public interface Calculator {
    public int add(int x, int y);
    public int subtract(int x, int y);
import javax.ejb.Remote;
@Remote
public interface CalculatorRemote extends Calculator {
import javax.ejb.Local;
@Local
public interface CalculatorLocal extends Calculator {
import javax.ejb.Local;
import javax.ejb.Remote;
import javax.ejb.Stateless;
import bean.CalculatorLocal;
import bean.CalculatorRemote;
@Stateless
public class CalculatorBean implements CalculatorRemote, CalculatorLocal {
    public int add(int x, int y) {
        return x + y;
    public int subtract(int x, int y) {
        return x - y;
import bean.*;
import bean.Calculator;
import bean.CalculatorLocal;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class ClientAccessLocalCalculator {
    public static void main(String[] args) throws NamingException {
        InitialContext ctx = new InitialContext();
        CalculatorLocal calculator = (CalculatorLocal) ctx.lookup("CalculatorBean/local");
        System.out.println("1 + 1 = " + calculator.add(1, 1));
        System.out.println("1 - 1 = " + calculator.subtract(1, 1));    }
import bean.Calculator;
import bean.CalculatorRemote;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class ClientAccessRemoteCalculator {
    public static void main(String[] args) throws NamingException {
        InitialContext ctx = new InitialContext();
        CalculatorRemote calculator = (CalculatorRemote) ctx.lookup("CalculatorBean/remote");
        System.out.println("1 + 1 = " + calculator.add(1, 1));
        System.out.println("1 - 1 = " + calculator.subtract(1, 1));    }
}Output when running ClientAccessRemoteCalculator gives
1 + 1 = 2
1 - 1 = 0
Output when running ClientAccessLocalCalculator on JBoss AS 4.0.5 gives:
Exception in thread "main" javax.ejb.EJBException: Invalid invocation of local interface (null container)
at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:75)
at $Proxy0.add(Unknown Source) at ClientAccessLocalCalculator.main(ClientAccessLocalCalculator.java:14)
JNDIView in JMX-Console in JBoss:
+- CalculatorBean (class: org.jnp.interfaces.NamingContext)
| +- local (proxy: $Proxy84 implements interface bean.CalculatorLocal,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBLocalObject)
| +- remote (proxy: $Proxy83 implements interface bean.CalculatorRemote,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBObject)
Output when running ClientAccessLocalCalculator on SJSAS 9.0 gives:
Exception in thread "main" javax.naming.NameNotFoundException: bean.CalculatorLocal not found
C:\>asadmin
Use "exit" to exit and "help" for online help.
asadmin> list-jndi-entries
Jndi Entries for server within root context:
bean.CalculatorRemote: javax.naming.Reference
jbi: com.sun.enterprise.naming.TransientContext
jdbc: com.sun.enterprise.naming.TransientContext
UserTransaction: com.sun.enterprise.distributedtx.UserTransactionImpl
bean.CalculatorRemote__3_x_Internal_RemoteBusinessHome__: javax.naming.Reference
bean.CalculatorRemote#bean.CalculatorRemote: javax.naming.Reference
ejb: com.sun.enterprise.naming.TransientContext
Command list-jndi-entries executed successfully.
asadmin>I am using Application Client to lookup these Session Beans on Netbeans 5.5, JBoss AS 4.0.5 (EJB3 installer)/SJSAS
9.0, SDK 1.5.0_11 on Windows XP platform.
Any assistance would be much appreciated.
Many thanks,
Henry

Hi Henry,
Any direct global JNDI lookup is not portable. It works in some cases but not in others, which
is why we recommend using the portable Java EE approach of declaring an ejb dependency
and looking up that dependency via the bean's component environment (java:comp/env).
This is true whether you're dealing with Remote or Local ejb dependencies.
Local ejbs are not supported in the Application Client tier at all. In the server tier, there is no
guarantee that a Local EJB even is assigned a global JNDI name since there's no requirement
that it be available outside of the application in which the ejb is defined.
You can find more information on these ejb access topics in our EJB FAQ :
https://glassfish.dev.java.net/javaee5/ejb/EJB_FAQ.html

Session bean lookup during MBean registration

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