Javax.naming.NameNotFoundException: error in whil calling EJB Bean

Question

Dear friends,
I have created (Bean Managed Entity) a remote,home and bean objects for adding a country in a database. When i convert
into jar and and deploy means, its working fine. But if i put into a package means it does work
and raise "javax.naming.NameNotFoundException" error.
i keep my files as following folder structure
d:\siva\projects\ShopCart\
(under this )
CountryMas.java
CountryHome.java
CountryBean.java
CountryMasPK.java
<meta-inf>
ejb-jar.xml
weblogic-ejb-jar.xml
and deployed in weblogic 6.1 using console.
i have copied the source code here with
Remote interface
package ShopCart;
import javax.ejb.*;
import javax.rmi.*;
public interface CountryMas extends EJBObject {
Home Interface
package ShopCart;
import javax.ejb.*;
import java.rmi.*;
public interface CountryHome extends EJBHome {
     public CountryMas create(String Cname) throws CreateException,RemoteException;
     public CountryMas findByPrimaryKey(CountryMasPK pk) throws      
FinderException,RemoteException;
BEAN OBJECT
package ShopCart;
import java.io.*;
import java.util.*;
import java.sql.*;
import javax.sql.*;
import javax.ejb.*;
import javax.naming.*;
public class CountryBean implements EntityBean {
     private EntityContext ctx;
     private int CountryId;
     private String CountryName;
     public void setEntityContext(EntityContext ctx){
          this.ctx = ctx;
     public void unsetEntityContext(){
          this.ctx = null;
     public void ejbActivate(){
     public void ejbPassivate(){
     public void ejbLoad(){
     public void ejbStore(){
     public void ejbRemove(){
          Connection con = null;
          PreparedStatement ps = null ;
          try {
               con = getConnection();
               ps = con.prepareStatement("Delete from CountryMas where id=?");
               ps.setInt(1,CountryId);
               if (ps.executeUpdate() !=1) {
                    String Error = "JDBC did not create any row";
                    throw new CreateException (Error);
          }catch (Exception e){
               System.out.println (e);
     public CountryMasPK ejbCreate(String Cname) throws CreateException {
          this.CountryName =Cname;
          Connection con = null;
          PreparedStatement ps = null ;
          try {
               con = getConnection();
               ps = con.prepareStatement("insert into CountryMas values(?)");
               ps.setString (1,CountryName);
               if (ps.executeUpdate() !=1) {
                    String Error = "JDBC did not delete any row";
                    throw new CreateException (Error);
               con.commit();
          }catch (Exception e){
               System.out.println (e);
          int PKid=0;
          ResultSet rs;
          PreparedStatement ps1 = null;
          try {
               ps1 = con.prepareStatement("select max(id) as Mid from CountryMas");
               rs = ps1.executeQuery();
               PKid = rs.getInt("mid");
          }catch(Exception e){
               System.out.println (e);
          return new CountryMasPK(PKid);
     public void ejbPostCreate(String Cname) throws CreateException {
     private Connection getConnection()throws SQLException {
          InitialContext initCtx = null;
          DataSource ds = null;
          try{
               initCtx = new InitialContext ();
               ds = (javax.sql.DataSource)
                    initCtx.lookup("java:comp/env/jdbc/ShopCartPool");
          }catch(Exception e){
               System.out.println(e);
          return ds.getConnection();           
     public CountryMasPK ejbFindByPrimaryKey(CountryMasPK pk)throws ObjectNotFoundException {
          Connection con= null;
          PreparedStatement ps = null ;
          try{
               con = getConnection();
               ps = con.prepareStatement("select cname from CountryMas where id=?");
               ps.setInt(1,pk.ID);
               ps.executeQuery();
               ResultSet rs= ps.getResultSet();
               if (rs.next()){
                    this.CountryName = rs.getString(1);
          }catch(Exception e){
               System.out.println(e);
          //return new CountryMasPK(pk.i);
          return pk;
PRIMARY KEY OBJECT
package ShopCart;
import java.io.Serializable;
public class CountryMasPK implements java.io.Serializable {
     public int ID;
     public CountryMasPK(int ID){
          this.ID =ID;
     public CountryMasPK(){
     public CountryMasPK(CountryMasPK pk){
               this.ID = pk.ID;
     public String toString(){
               return new Integer(ID).toString();
     public int hashCode(){
          return new Integer(ID).hashCode();
     public boolean equals(Object countrymas){
          //return ((CountryMasPK)countrymas).ID.equals(ID);
          return true;
EJB-JAR.XML
<?xml version="1.0"?>
<!DOCTYPE ejb-jar PUBLIC
'-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN'
'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>
<ejb-jar>
<enterprise-beans>
<entity>
<ejb-name>ShopCart</ejb-name>
<home>ShopCart.CountryHome</home>
<remote>ShopCart.CountryMas</remote>
<ejb-class>ShopCart.CountryBean</ejb-class>
<persistence-type>Bean</persistence-type>
<prim-key-class>ShopCart.CountryMasPK</prim-key-class>
<reentrant>False</reentrant>
<resource-ref>
<res-ref-name>jdbc/ShopCartPool</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>ShopCart</ejb-name>
     <method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
WEBLOGIC-EJB-JAR.XML
<?xml version="1.0"?>
<!DOCTYPE weblogic-ejb-jar PUBLIC
'-//BEA Systems, Inc.//DTD WebLogic 6.0.0 EJB//EN'
'http://www.bea.com/servers/wls600/dtd/weblogic-ejb-jar.dtd'>
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>ShopCart</ejb-name>
<reference-descriptor>
<resource-description>
<res-ref-name>jdbc/ShopCartPool</res-ref-name>
     <jndi-name>ShopCartDataSource</jndi-name>
</resource-description>
</reference-descriptor>
<jndi-name>Country</jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
i converted jar file like this
d:\siva\projects\> set claapath=%classpath%;.;
cd d:\siva\projects\ShopCart > javac *.java
cd d:\siva\projects\ShopCart > jar -cvf Sh.jar *
cd..
d:\siva\projects> java weblogic.ejbc ShopCart\Sh.jar ShopCart\Shop.jar
and deployed using weblogic 6.1 console
and client code as follows
Client.java
import java.io.*;
import javax.naming.*;
import javax.ejb.*;
import javax.rmi.*;
import java.util.*;
import ShopCart.*;
class Client {
     public static void main(String args[]){
          Context ctx=null;
          try{
               Properties pr = new Properties();
               pr.put(Context.INITIAL_CONTEXT_FACTORY,
                    "weblogic.jndi.WLInitialContextFactory");
               pr.put(Context.PROVIDER_URL,"t3://localhost:7001");
               ctx= new InitialContext(pr);
               Object obj = ctx.lookup("Country");
               CountryHome cm = (CountryHome)
javax.rmi.PortableRemoteObject.narrow(obj,CountryHome.class);
               cm.create(args[0]);
               System.out.println ("Creating Country " + args[0] +" ..... [Done]");          
          }catch (Exception e){
               System.out.println(e);
when i run this file it raise the error
D:\Siva\Projects>java Client.java
Exception in thread "main" java.lang.NoClassDefFoundError: Client/java
D:\Siva\Projects>java Client
javax.naming.NameNotFoundException: Unable to resolve Country. Resolved: '' Unre
solved:'Country' ; remaining name ''
D:\Siva\Projects>
This is the error message. Please observe it and do let me know what would be the error. There
would be small configuration error. But i couldn't locate it . plz help me somebody.
Thanx & Regards,
Siva.

Answer 1

you need to use the name java:comp/env/Country in the client.
and the client deployment descriptor will need an ejb-ref entry:
<ejb-ref>
  <ejb-ref-name>
    Country
  </ejb-ref-name>
  <ejb-ref-type>
    Session
  </ejb-ref-type>
  <home>
    ShopCart.CountryHome
  </home>
  <remote>
    ShopCart.CountryMas
  </remote>
</ejb-ref>toby