EJB 3.0 Deployment Problem

[Aryan Khan]

My first ejb deployment running in trouble.

Created the ejb

package myEJB;
import javax.ejb.Stateless;
 
@Stateless
public class NewSessionBean implements myEJB.NewSessionRemote {
    
    /** Creates a new instance of NewSessionBean */
    public NewSessionBean() {
    }
    
    public int getValue()
    {
        return -1;
    }
}

Packaged and deployed successfully to Sun App Server PE 9. Created the client:

package clientea;
 
import javax.ejb.EJB;
import myEJB.*;
public class Main {
    
    @EJB
    private static NewSessionBean aBean;
    /** Creates a new instance of Main */
    public Main() {
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        aBean.getValue();
    }
  }

While deploying getting the following error:
Class [ LmyEJB/NewSessionBean; ] not found. Error while loading [ class clientea.Main ]
Error in annotation processing: java.lang.NoClassDefFoundError: LmyEJB/NewSessionBean;

--------------------------------
But deployment message says successfully deployed.:
-------------
Deploying application in domain completed successfully
Trying to create reference for application in target server completed successfully
Trying to start application in target server completed successfully
Deployment of application ClientEA-app-client completed successfully
Target module started
---------------------------------------

While running the client I get a nullpointer exception:

--- --------------- --------
Apr 2, 2007 3:22:38 PM com.sun.enterprise.appclient.MainWithModuleSupport <init>
WARNING: ACC003: Application threw an exception.
java.lang.NullPointerException
at clientea.Main.main(Main.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.enterprise.util.Utility.invokeApplicationMain(Utility.java:232)
at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:329)
at com.sun.enterprise.appclient.Main.main(Main.java:180)
Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:340)
at com.sun.enterprise.appclient.Main.main(Main.java:180)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.enterprise.util.Utility.invokeApplicationMain(Utility.java:232)
at com.sun.enterprise.appclient.MainWithModuleSupport.<init>(MainWithModuleSupport.java:329)
... 1 more
Caused by: java.lang.NullPointerException
at clientea.Main.main(Main.java:31)
... 7 more
Java Result: 1
-----------
Cant figure out why?

Ahmad

[bala nannaka]

import home and remote interfaces into your client and lookup for home stub object through JNDI bounded name.copy your appropriate home and remote interfaces classes into your client directory.

[Aryan Khan]

I am following one of the tutorials from sun. They have not used JNDI at all and used "injection". Is JNDI a must. Also the remote interface is there in client application.

[Aryan Khan]

Ok I found the problem.

I declared the bean instead of the remote interface in the client
-------
private static NewSessionBean aBean; //Wrong
--------