Need to know the jar file...?

Hi,Iam writing an java program which is going to send messages to the remote websphereMQ server,program compiled successfully while in execution it throws error.The prgram is
com/ibm/jvm/ExtendedSystem/*
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import java.util.Properties;
import javax.jms.JMSException;
import javax.jms.TextMessage;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.Hashtable;
public class Sender {
     String url_;
     String name_;
     QueueConnection conn = null;
     QueueSession session = null;
     Queue queue = null;
     public Sender(String url, String name) throws JMSException, NamingException {
          url_ = url;
          name_ = name;
         this.initializeSender();
     private void initializeSender() throws JMSException, NamingException {
     /*      Properties props = new Properties();
          props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
          props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");
          props.setProperty("java.naming.provider.url", url_); */
          String icf = "com.ibm.websphere.naming.WsnInitialContextFactory";
          //String url="iiop://192.168.2.45:1421";
          // Initialise JNDI properties
          Hashtable env = new Hashtable();
          env.put("java.naming.factory.initial",icf);
          env.put("java.naming.factory.url.pkgs","com.ibm.ws.naming");
          env.put("org.omg.CORBA.ORBClass","com.ibm.rmi.iiop.ORB");
          env.put("org.omg.CORBA.ORBSingletonClass","com.ibm.rmi.corba.ORBSingleton");
          env.put("javax.rmi.CORBA.UtilClass","com.ibm.rmi.javax.rmi.CORBA.Util");
          env.put("javax.rmi.CORBA.StubClass","com.ibm.rmi.javax.rmi.CORBA.StubDelegateImpl");
          env.put("javax.rmi.CORBA.PortableRemoteObjectClass","com.ibm.rmi.javax.rmi.PortableRemoteObject");
          env.put("java.naming.provider.url",url_);
          InitialContext context = new InitialContext(env);
          QueueConnectionFactory qcf = (QueueConnectionFactory) context.lookup("QCF");
          conn = qcf.createQueueConnection();
          queue=(Queue)context.lookup(name_);
          session = conn.createQueueSession(false,QueueSession.AUTO_ACKNOWLEDGE);
          conn.start();
      public void send(String text) throws JMSException, NamingException {
          QueueSender send = session.createSender(queue);
          TextMessage tm = session.createTextMessage(text);
          send.send(tm);
          send.close();
     public void disconnect() throws JMSException {
          if(conn != null) {
               conn.stop();
          if(session != null) {
               session.close();
          if(conn != null) {
               conn.close();
     public String getTopicName() {
          return name_;
     public String getTopicURL() {
          return url_;
     public static void main(String args[]) throws Exception {
          System.out.println("Starting JMS Example Sender");
            Sender sender = new Sender("iiop://192.168.2.45:1421", "ASMQUEUE");
             System.out.println("Sending list of data");
             sender.send("Krishna Moorthy");
             sender.disconnect();
                  System.out.println("JMS Example Sender Complete - list sent");
}During Execution followng error occurs,
D:\jboss-4.0.5.GA\WebSphere_JMS>java Listener
Starting JMS Example Listener
performing lookup...
Error creating listener: javax.naming.NamingException: Failed to initialize the
ORB [Root exception is org.omg.CORBA.INITIALIZE: can't instantiate default ORB i
mplementation com.ibm.CORBA.iiop.ORB  vmcid: 0x0  minor code: 0  completed: No]
javax.naming.NamingException: Failed to initialize the ORB [Root exception is or
g.omg.CORBA.INITIALIZE: can't instantiate default ORB implementation com.ibm.COR
BA.iiop.ORB  vmcid: 0x0  minor code: 0  completed: No]
at com.ibm.ws.naming.util.Helpers.getOrb(Helpers.java:293)
at com.ibm.ws.naming.util.WsnInitCtxFactory.getInitialContextInternal(Ws
nInitCtxFactory.java:365)
at com.ibm.ws.naming.util.WsnInitCtx.getContext(WsnInitCtx.java:102)
at com.ibm.ws.naming.util.WsnInitCtx.getContextIfNull(WsnInitCtx.java:40
8)
at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:131)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at Listener.initializeListener(Listener.java:78)
at Listener.<init>(Listener.java:31)
at Listener.main(Listener.java:112)
Caused by: org.omg.CORBA.INITIALIZE: can't instantiate default ORB implementatio
n com.ibm.CORBA.iiop.ORB vmcid: 0x0 minor code: 0 completed: No
at org.omg.CORBA.ORB.create_impl(ORB.java:297)
at org.omg.CORBA.ORB.init(ORB.java:336)
at com.ibm.ws.orb.GlobalORBFactory.init(GlobalORBFactory.java:77)
at com.ibm.ejs.oa.EJSORBImpl.initializeORB(EJSORBImpl.java:174)
at com.ibm.ejs.oa.EJSClientORBImpl.<init>(EJSClientORBImpl.java:98)
at com.ibm.ejs.oa.EJSClientORBImpl.<init>(EJSClientORBImpl.java:74)
at com.ibm.ejs.oa.EJSORB.init(EJSORB.java:386)
at com.ibm.ws.naming.util.Helpers.getOrb(Helpers.java:284)
... 8 more
Caused by: java.lang.NoClassDefFoundError: com/ibm/jvm/ExtendedSystem
at com.ibm.rmi.util.JDKBridge.setCodebaseProperties(JDKBridge.java:226)
at com.ibm.rmi.util.JDKBridge.<clinit>(JDKBridge.java:205)
at com.ibm.rmi.util.RepositoryId.<clinit>(RepositoryId.java:122)
at com.ibm.rmi.iiop.CDROutputStream.<clinit>(CDROutputStream.java:1077)
at com.ibm.rmi.corba.ORB.<init>(ORB.java:250)
at com.ibm.rmi.iiop.ORB.<init>(ORB.java:166)
at com.ibm.CORBA.iiop.ORB.<init>(ORB.java:521)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct
orAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC
onstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at org.omg.CORBA.ORB.create_impl(ORB.java:295)
... 15 more
Done listening
In my application classpath following jars are used : jms.jar,naming.jar,namingClient.jar,ibmorb.api,ibmorbapi.jar,jndi.jar
I need to know the jar file name for this class : com/ibm/jvm/ExtendedSystem.And also tell me the solution to solve the above error.Anyone know the solution please reply as early as possible..Thanks in advance

Have you checked if any of the jar files in your class path contains the missing class ?

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