Hello guys i've got a problem in sending an Object to sever by remote (EJB3) technology framework

take look at my code

in server side

@Remote
public interface TestRemote {
 public void sendObject(Object obj);
}

@Stateless
public class TestBean implements TestRemote {
 public void sendObject(Object obj) {
 System.out.println("Object is Coming");
 }
}

in client side (swing)

public class H implements Serializable {
 private static final long serialVersionUID = 1L;
 private int id;

 public void setId(int id) {
 this.id = id;
 }

 public int getId() {
 return id;
 }
}

public class RunMe {
 public RunMe() {
 try {
 Properties prop = new Properties();

 prop.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
 prop.setProperty("java.naming.factory.url.pkgs","org.jboss.naming:org.jnp.interfaces");
 prop.setProperty("java.naming.provider.url","localhost:1099");

 Context ctx = new InitialContext(prop);
 System.out.println("Step 1");

 ClassLoader cl = Thread.currentThread().getContextClassLoader();
 Class k = cl.loadClass("client.H");

 H h = (H) k.newInstance();
 h.setId(44);


 System.out.println("Step 2");
 //Thread.currentThread().getContextClassLoader().
 RunMeRemote r = (RunMeRemote)
 ctx.lookup("RunMe/remote");
 r.setObject(h);

 } catch (Exception e) {
 System.out.println(e);
 }
 }
 public static void main(String[] st) {
 new RunMe();
 }
}

when I run this program i encountered to this exception

Step 1
Step 2
log4j:WARN No appenders could be found for logger (org.jboss.security.SecurityAssociation).
log4j:WARN Please initialize the log4j system properly.
java.lang.RuntimeException: java.lang.ClassNotFoundException: No ClassLoaders found for: client.H (no security manager: RMI class loader disabled)

when i add this code

public class Client {



 @SuppressWarnings("unchecked")
 public Client() {
 try {
 Properties prop = new Properties();

 prop.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
 prop.setProperty("java.naming.factory.url.pkgs","org.jboss.naming:org.jnp.interfaces");
 prop.setProperty("java.naming.provider.url","localhost:1099");

 Context ctx = new InitialContext(prop);
 if (System.getSecurityManager() == null) {
 System.setSecurityManager(new RMISecurityManager());
 }
 System.out.println("Step 1");

 ClassLoader cl = Thread.currentThread().getContextClassLoader();
 Class k = cl.loadClass("client.H");

 H h = (H) k.newInstance();
 h.setId(44);


 System.out.println("Step 2");
 //Thread.currentThread().getContextClassLoader().
 RunMeRemote r = (RunMeRemote) ctx.lookup("RunMe/remote");
 r.setObject(h);

 } catch (Exception e) {
 System.out.println(e);
 }

 }

 public static void main(String[] s) {

 new Client();
 }

}

another exception is appeared

Step 1
Step 2
log4j:WARN No appenders could be found for logger (org.jnp.interfaces.NamingContext).
log4j:WARN Please initialize the log4j system properly.
javax.naming.CommunicationException: Could not obtain connection to any of these urls: localhost:1099 and discovery failed with error: java.security.AccessControlException: access denied (java.net.SocketPermission 230.0.0.4 connect,accept,resolve) [Root exception is javax.naming.CommunicationException: Failed to connect to server localhost:1099 [Root exception is java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)]]

Mention. when i want to send a String or int or any prmetive java Object my program works good and send the date for sever
but when i want to send an object (Entity Object) the exception is appeared.

tell what should i do to send an Object to sever by remote (EJB3) Technology? thanks so much