EJB3 and JBoss client java.io.InvalidClassException

[spawnoflinktis]

Hello, I am relativly new to Enterprise development and especially EJB3, I have looked everywhere over the internet for a solution to this but to no avail. I'm using JBoss 4.2.2GA. Anyway, I deploy my entity and session beans properly and I verify that my session bean has started in Jboss's console.
************
So my session bean is :

package com;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.io.Serializable;
import com.EntityDB;
@Stateless
public class MainSessionBean implements Serializable, SessionBeanRemote{
@PersistenceContext
private EntityManager em;
static final long serialVersionUID = -5951007355563165335L;

public void setToDB(String in1, String in2)
{
EntityDB edb = new EntityDB();
edb.setName(in1);
edb.setPassword(in2);
em.persist(edb);
}
}

**********************
And its interface is

package com;
import javax.ejb.Remote;
import java.io.Serializable;
@Remote
public interface SessionBeanRemote extends Serializable{
static final long serialVersionUID = -1145492871624366669L;

public void setToDB(String in1, String in2);

}

*******************
my client code is

package test;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import com.SessionBeanRemote;
import java.io.Serializable;
public class MainTestClient implements Serializable{

static final long serialVersionUID = -3849529018242856585L;

public static void main(String[] args) {

Properties properties = new Properties();
properties.put("java.naming.factory.initial",
"org.jnp.interfaces.NamingContextFactory");
properties.put("java.naming.factory.url.pkgs",
"=org.jboss.naming:org.jnp.interfaces.jnp");
properties.put("java.naming.provider.url", "localhost:1099");
Context context=null;
try {
context = new InitialContext(properties);
Object o= context.lookup("MainSessionBean/remote");
Object j = null;
SessionBeanRemote beanRemote = (SessionBeanRemote)j;
beanRemote.setToDB("myUser","myPswrd");

} catch (NamingException e) {
e.printStackTrace();
throw new RuntimeException(e);
}
System.out.println("finished");
}
}

*****************************
whenever i run the client i get the exception

javax.naming.CommunicationException [Root exception is java.io.InvalidClassException: org.jboss.ejb3.remoting.BaseRemoteProxy; local class incompatible: stream classdesc serialVersionUID = -2711693270411201590, local class serialVersionUID = 1126421850898582900]
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:722)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
at javax.naming.InitialContext.lookup(Unknown Source)
at test.MainTestClient.main(MainTestClient.java:30)
Caused by: java.io.InvalidClassException: org.jboss.ejb3.remoting.BaseRemoteProxy; local class incompatible: stream classdesc serialVersionUID = -2711693270411201590, local class serialVersionUID = 1126421850898582900
at java.io.ObjectStreamClass.initNonProxy(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(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.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

I apologize for the large nature of this post, but ive been dealing with this problem for several days now. The interesting things i have found is that even if i do not place the serialVersionUID's into all the classes i recieve the same exception. If i try to run this code on another machine running Jboss 4.2.2GA as well i get the same values, and if i try and make another project with similar code i get the same Error with the same serialVersionUID's, Im sure that is important but i cannot figure out what could be going wrong.
Thanks in advance for any responses

[spawnoflinktis]

Update: a new serialVersionUid has appeared when i started cutting out .jars however this could have been caused by other things as well, i thought maybe eclipse was causing the problem so i started another project with just my client in it, and set up a jar file (the exact same one that deploys on the server) as a user library and import the com.sessionDB from there. still no luck and i have the second serialVersionUID still appearing. any suggestions would really help because I have run out of ideas to test for.
Thanks

[alexg79]

Why are you using SerialVersionUIDs in the first place? I've done just fine without. Oh, and remote interfaces don't need to implement Serializable anyway.