Getting NoSuchObjectInTable Exception though getting reference to remoteObj

Question

This is part of my BE final year project
My RMI agent is working, it is getting Remote reference to my FileTransfer agent
but while executing method "connectAgent" is not working
it says
"NoSuchObjectInTable" exception type
donno what is prob with it
and more over sometime it works too
can ANYBODY PLS SUGGEST ANY SOLUTION
PLS REPLY SOON
I HAVE MY SUBMISSIONS DATE VERY CLOSE
MAN THANKS IN ADVANCE
best regards
this registers my FileTransferAgnet to registry
public FileTransferAgent()
        try
            LogManager logManager=new LogManager();
            disp=new StatusDisplay();
            address=logManager.readLogContent("environment_log\\EnvironmentConfig.xml", "local_dir_ip");
            int port=Integer.parseInt(logManager.readLogContent("environment_log\\EnvironmentConfig.xml", "local_registrar_port"));
            Registry registry=LocateRegistry.getRegistry(address,port);
            registrar=(LocalRegistrarInterface)registry.lookup("LocalRegistrar");
            disp.write("Registrar#"+registrar);
            System.out.print("Registrar#"+registrar);
            if(registrar.isAgentAlive(classString))
               agent=(FileTransferAgentInterface)registrar.getAgent(service,address);
               System.out.print("Got from registry"+agent);
               disp.write("Got from registry"+agent);
            else
                registrar.registerAgent(classString,this,0,null,null);
                registrar.registerService(service,classString);
                agent=(FileTransferAgentInterface)registrar.getAgent(service,address);
                System.out.print("Registered"+agent);
                disp.write("Registered"+agent);
            while(socketPort<1024)
                socketPort=(int)Math.round(Math.random()*65550);
        catch(Exception e)
            e.printStackTrace();
this will get remote reference and is working fine till Connect Agent method call
public boolean invokeRemoteAgent(String hostName,boolean isIPAddress)
        try
            UniversalRegistrarInterface uniReg=registrar.getUniversalRegistrarInterface();
            System.out.println(uniReg);
            int port=uniReg.getLocalDirPort(hostName,isIPAddress);
            String addr="";
            if(!isIPAddress)
            addr=uniReg.getIP(hostName);
            else
            addr=hostName;
            LocalRegistrarInterface regi=registrar.getLocalRegistrarInterface(addr, port, null);
            System.out.println("\n\n\nRemoteLocalRegistrar: "+regi);
            System.out.println(regi.isAgentAlive(classString));
            if(!regi.isAgentAlive(classString))
                regi.invokeAgent("framework.agents.FileTransferAgent", service);
            remoteAgent=(FileTransferAgentInterface)regi.getAgent(service,address);
            System.out.println("\n\nremoteAgent: "+remoteAgent);
            serverSock=new ServerSocket(socketPort);
            //new Thread(this).start();
            remoteAgent.connectAgent(address, socketPort);
            socket=serverSock.accept();
            System.out.println("Server socket is created at"+address+"#"+socketPort+" \n\nSocket:"+ socket);
            return true;
        catch(Exception e)
            e.printStackTrace();
            return false;
    }root of the problem
public boolean connectAgent(String address, int port)
        try
            Thread.sleep(5000);
            socket=new Socket(address,port);
            in=socket.getInputStream();
            out=socket.getOutputStream();
            System.out.println("\n\n************Connected at"+address+"#"+port);
            new StatusDisplay().write("Connected at"+address+"#"+port);
            return true;
        catch(Exception e)
            e.printStackTrace();
            return false;
    }Edited by: RiteshMModi on Apr 14, 2008 4:12 PM

Answer 1

see the following output I get
Proxy[FileTransferAgentInterface,RemoteObjectInvocationHandler[UnicastRef [liveR
ef: [endpoint:[172.168.0.15:1073](remote),objID:[-7c4f6d64:119558c6a45:-7fd6, 24
63486946656381430]]]]]
java.rmi.NoSuchObjectException: no such object in table
        at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknow
n Source)
        at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
        at sun.rmi.server.UnicastRef.invoke(Unknown Source)
        at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unkn
own Source)
        at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source)
        at $Proxy1.createFile(Unknown Source)
        at TestingFTA.main(TestingFTA.java:37)This means that I am getting reference to the remote FileTransferAgent , it is printing it, till this point all fine
but as soon as i invoke any method using the same object, it throws exception as NoSuchObject