I set the client to run behind a firewall, and then made the server callback to the client. This is after setting SSL and enabling bidirectional GIIOP.
The server could not connect to the client as it was trying to open another port

Checking the code I found that though the profile was added in BiDirConnectionServerInterceptor::addConnection, the requestId was not found in the ClientConnectionManager::getConnection

I changed the code in the BiDirConnectionServerInterceptor::addConnection and also made the hashmap key in the ClientConnectionManager to a string explicitly,
while setting the keys and getting it.
private final Map connections = new HashMap(); 

ClientConnection clientConnection =
            (ClientConnection)connections.get(profile.toString() );
After these changes the server is able to callback on the client, which is behind the firewall. Also from the jacorb traces I was able to see that the profile is found for the requst id and the same profile is reused. I will attach the diff of the changed files. (Note I am behind company firewall and cannot aceess cvs source direclty and cannot do a cvs diff)


Client Code
 ClientCallback ccb = ClientCallbackHelper.narrow(bidir_poa.servant_to_reference( new ClientCallbackPOAImpl() ));
				
System.out.println("Going to register callback with the Server for Topology Change");
srvCallBack.register_callback(ccb);

Server Code

SrvRegisterCallBackPOAImpl

public void register_callback(ClientCallback clntobj) {
	
		System.out.println("Received the callback from the client");
		callbackobj =clntobj;
		System.out.println("Going to call the client");
		callbackobj.TopologyChanged("192.186.22.44", true);

	}