Serialization exception in RMI

Question

I have a GameServerImp remote class:
HashMap clients;
HashMap versus;
public GameServerImp() throws RemoteException
clients =new HashMap();
versus =new HashMap();
public void register(String name,GameClientInt c) throws RemoteException
clients.put(name,c);
these are its functions.
I have a client :
public class BI implements GameClientInt{
public BI()
I have following code invoking the register method.
1 mainServer = (GameServerInt)Naming.lookup("rmi://localhost:1099/gameservice");
2 mainServer.register(name,new BI());
when 2 line executes it gives exception:
java.rmi.MarshalException: error marshalling arguments; nested exception is:
java.io.NotSerializableException: BI
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122)
at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:179)
at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132)
at $Proxy0.register(Unknown Source)
There is nothing related to io :(. I cant figure out why it is happening.

Answer 1

Hi,
Please user for posting sample code
Does this interface  GameClientInt extends Serializable? if not can you do that and try again
Regards,
Alan Mehio
London,UK