javax.naming.CommunicationException while executing a client

[javion]

hi i am getting the following error

the exception

javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException: org.jboss.proxy.ejb.EJBMetaDataImpl (no security manager: RMI class loader disabled)]
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:728)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at client.CalculatorClient.main(CalculatorClient.java:45)
Caused by: java.lang.ClassNotFoundException: org.jboss.proxy.ejb.EJBMetaDataImpl (no security manager: RMI class loader disabled)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:371)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1538)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
at java.rmi.MarshalledObject.get(MarshalledObject.java:135)
at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:652)
... 3 more
javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException: org.jboss.proxy.ejb.EJBMetaDataImpl (no security manager: RMI class loader disabled)]


my client class

/**
*
*/
package client;

import calc.Calculator;
//import calc.CalculatorRemote;

import javax.naming.Context;
import javax.naming.InitialContext;

import com.sun.org.apache.xalan.internal.xsltc.runtime.Hashtable;


public class CalculatorClient {


public static void main(String[] args) throws Exception
{
// Look up home interface

Hashtable env = new Hashtable();
//env.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");

("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");
System.setProperty(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
System.setProperty(Context.PROVIDER_URL, "localhost:1099");
System.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");

try

{

/* Context ctx = new InitialContext();
Calculator calculator = (Calculator) ctx.lookup("leaving/StatelessCalculator/local");
System.out.println("1 + 1 = " + calculator.add(1, 1));*/


InitialContext ctx = new InitialContext();
Calculator calculator = (Calculator) ctx.lookup("leaving/StatelessCalculator/remote");

System.out.println("1 + 1 = " + calculator.add(1, 1));
//System.out.println("1 - 1 = " + calculator.subtract(1, 1));
}catch (Exception e)
{
e.printStackTrace();
System.out.println(e);
}
}
}



please tell me how do i rectify/modify the program

[jaikiran]

[Root exception is java.lang.ClassNotFoundException: org.jboss.proxy.ejb.EJBMetaDataImpl

The EJBMetaDataImpl is not present in the classpath. Place the appropriate jar(s) in the classpath.

[mahak]

Hi i am also facing same problem
/*
* CartClient.java
*
* Created on October 11, 2007, 10:31 AM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/

package ejb_stateful;

import java.util.Collection;
import java.util.Hashtable;
import java.util.Iterator;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class CartClient {
public static void main(String [] args) throws NamingException {

try {

Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
env.put(Context.PROVIDER_URL,"localhost");
env.put(Context.URL_PKG_PREFIXES,"org.jboss.naming:org.jnp.interfaces");

Context context = new InitialContext(env);

if(context!=null)
System.out.println("context: success");

ejb_stateful.CartRemote cart=null;
try{
cart = (ejb_stateful.CartRemote)context.lookup("CartBean");
}catch(Exception e){
System.out.println("naming ex here"+e);
}
if(cart==null)
System.out.println("cart is null");
if(cart!=null)
System.out.println("cart: success");
System.out.println("Adding items to cart");

cart.addItem("Pizza");
cart.addItem("Pasta");
cart.addItem("Noodles");
cart.addItem("Bread");
cart.addItem("Butter");

System.out.println("Listing cart contents");
Collection items = cart.getItems();
for (Iterator i = items.iterator(); i.hasNext();) {
String item = (String) i.next();
System.out.println(" " + item);
}
} catch (Exception ex) {
ex.printStackTrace();
}
}


}

[jaikiran]

You will have to post the entire exception stacktrace, you are seeing and also provide more details of your application.