[jboss-user] [EJB 3.0] - Please help me to solve the problem

[Govardhan Reddy]

Govardhan Reddy [http://community.jboss.org/people/sgreddy.vardhan] created the discussion

"Please help me to solve the problem"

To view the discussion, visit: http://community.jboss.org/message/543663#543663

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!) 
*package*
** 
*com.ejb3.account;*** ** 
*import*
** 
*javax.ejb.Stateless;*** ** 
*@Stateless*
*(name="AccountBean",mappedName="AccountBean")*** *public*
** 
*class AccountBean implements AccountRemote{*** *public*
** 
*void deposit(int accno,double amt)*** *{*
*System.*
+*out.println("Ok Deposited");*** *}*
*public*
** 
*double getBal(int accno)*** *{*
** 
*return 9999;*** *}*
*}*


*2)* *package*

 com.ejb3.account;




*import*

 javax.ejb.Remote;

*@Remote*
*public*
 *interface* AccountRemote {


*public double getBal(int* *accno);* 


*public void deposit(int accno,double* *amt);*
*}*
** 
*3)package com.ejb3.account;*
*import java.util.Properties;*
*import javax.naming.Context;
import javax.naming.InitialContext;*
*public class AccountEjb3Jboss422Client {*
 */**
  * @param args
  */
 public static void main(String[] args) {
  try{
   Properties p=new Properties();
   p.put("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
   p.setProperty("java.naming.provider.url","localhost:1099");
   p.setProperty("java.naming.factory.url.pkgs","org.jboss.naming");
   
   Context ctx=new InitialContext(p);
      
   System.out.println("Initial Context created");*
*   Object o=ctx.lookup("AccountBean/remote");
   System.out.println("lookup successful");
   AccountRemote ar=(AccountRemote)o;
   System.out.println("Calling EJB method . . .");
   ar.deposit(88,10000);
   double bal=ar.getBal(88);
   System.out.println("Bal is: "+bal);
   System.out.println("Output will be in Managed server console");
   
  }catch (Exception e) {
   e.printStackTrace();
  }
 }
}
*
*error*
*Initial Context created
javax.naming.CommunicationException

NamingContext.java:722)at org.jnp.interfaces.NamingContext.lookup(

NamingContext.java:587)at javax.naming.InitialContext.lookup(Unknown Source)
at com.ejb3.account.AccountEjb3Jboss422Client.main(

AccountEjb3Jboss422Client.java:24)Caused by:

java.io.InvalidClassException: org.jboss.remoting.InvokerLocator; local class incompatible: stream classdesc serialVersionUID = -4977622166779282521, local class serialVersionUID = -2909329895029296248at java.io.ObjectStreamClass.initNonProxy(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.rmi.MarshalledObject.get(Unknown Source)
at org.jnp.interfaces.MarshalledValuePair.get(

MarshalledValuePair.java:72)at org.jnp.interfaces.NamingContext.lookup(

NamingContext.java:652)... 3 more

please help me

 [Root exception is java.io.InvalidClassException: org.jboss.remoting.InvokerLocator; local class incompatible: stream classdesc serialVersionUID = -4977622166779282521, local class serialVersionUID = -2909329895029296248]at org.jnp.interfaces.NamingContext.lookup(
*


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