[rlug] RMI-linux

[cristi]

Am un exemplu de aplicatie  in java care foloseste RMI_ul.
Aplicatia merge pe windows dar pe linux nu vrea.(in ambele cazuri folosesc jdk1.2)
am dat:
root@servsal1 3]# rmiregistry &
dar la pornirea Serverului am mesajul:

[root@servsal1 3]# java CalculatorServer
problema: java.rmi.ServerException: RemoteException occurred in server thread; n
ested exception is:
 java.rmi.UnmarshalException: error unmarshalling arguments; nested excep
tion is:
 java.lang.ClassNotFoundException: CalculatorImpl_Stub

ce nu-i convine?

public class CalculatorServer {
  public CalculatorServer() {
    try {
      Calculator c = new CalculatorImpl();
      Naming.rebind("rmi://localhost:1099/CalculatorService", c);
    } catch (Exception e) {
      System.out.println("problema: " + e);
    }
  }

  public static void main(String args[]) {
    new CalculatorServer();
  }
}
##########################
public interface Calculator
          extends java.rmi.Remote {
    public long add(long a, long b)
        throws java.rmi.RemoteException;

    public long sub(long a, long b)
        throws java.rmi.RemoteException;

    public long mul(long a, long b)
        throws java.rmi.RemoteException;

    public long div(long a, long b)
        throws java.rmi.RemoteException;
###############
public class CalculatorImpl
    extends
      java.rmi.server.UnicastRemoteObject
    implements Calculator {

    // Implementations must have an
    //explicit constructor
    // in order to declare the
    //RemoteException exception
    public CalculatorImpl()
        throws java.rmi.RemoteException {
        super();
    }

    public long add(long a, long b)
        throws java.rmi.RemoteException {
        return a + b;
    }

    public long sub(long a, long b)
        throws java.rmi.RemoteException {
        return a - b;
    }

    public long mul(long a, long b)
        throws java.rmi.RemoteException {
        return a * b;
    }

    public long div(long a, long b)
        throws java.rmi.RemoteException {
        return a / b;
    }
##############
import java.rmi.Naming;
import java.rmi.RemoteException;
import java.net.MalformedURLException;
import java.rmi.NotBoundException;

public class CalculatorClient {

    public static void main(String[] args) {
        try {
            Calculator c = (Calculator)
                          Naming.lookup(
                "rmi://aaa/CalculatorService");
            System.out.println( c.sub(4, 3) );
            System.out.println( c.add(4, 5) );
            System.out.println( c.mul(3, 6) );
            System.out.println( c.div(9, 3) );
        }
        catch (MalformedURLException murle) {
            System.out.println();
            System.out.println(
              "MalformedURLException");
            System.out.println(murle);
   }
        catch (RemoteException re) {
            System.out.println();
            System.out.println(
                        "RemoteException");
            System.out.println(re);
        }
        catch (NotBoundException nbe) {
            System.out.println();
            System.out.println(
                       "NotBoundException");
            System.out.println(nbe);
        }
        catch (
            java.lang.ArithmeticException
                                      ae) {
            System.out.println();
            System.out.println(
             "java.lang.ArithmeticException");
            System.out.println(ae);
        }
    }
}


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