Name: krC82822 Date: 02/10/2001


10 Feb 2001, eval1127@eng -- may be related to #'s 4399798, 4375061.
-------
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-beta_refresh)
Java HotSpot(TM) Client VM (build 1.3.0-beta_refresh, mixed mode)

RMI-IIOP throws an org.omg.CORBA.portable.IndirectionException when unmarshaling
a Serializable object that implements readObject/writeObject and whose state
contains a recursive reference to itself.

I have already run this problem by [individual's name], an RMI-IIOP expert at
[company name], who suggested filing this bug report.

Here's the stack:

org.omg.CORBA.portable.IndirectionException: minor code: 0 completed: Maybe
        at
com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:781)

        at
com.sun.corba.se.internal.iiop.CDRInputStream.read_abstract_interface(CDRInputStream

.java:759)
        at
com.sun.corba.se.internal.iiop.CDRInputStream.read_abstract_interface(CDRInputStream

.java:751)
        at
com.sun.corba.se.internal.io.IIOPInputStream.readObjectDelegate(IIOPInputStream.java

:198)
        at
com.sun.corba.se.internal.io.IIOPInputStream.readObjectOverride(IIOPInputStream.java

:348)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:232)
        at examples.hello.SerObj.readObject(SerObj.java:25)
        at com.sun.corba.se.internal.io.IIOPInputStream.readObject(Native
Method)
        at
com.sun.corba.se.internal.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java

:1160)
        at
com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:785)

        at
com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:2

29)
        at
com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.jav

a:234)
        at
com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:194)

        at
com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:985)

        at examples.hello._Hello_Stub.getRecursive(Unknown Source)
        at examples.hello.HelloClient.go(HelloClient.java:48)
        at examples.hello.HelloClient.main(HelloClient.java:25)
Exception in thread "main" org.omg.CORBA.MARSHAL: minor code: 0 completed: No

        at
com.sun.corba.se.internal.io.IIOPInputStream.readObjectDelegate(IIOPInputStream.java

:204)
        at
com.sun.corba.se.internal.io.IIOPInputStream.readObjectOverride(IIOPInputStream.java

:348)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:232)
        at examples.hello.SerObj.readObject(SerObj.java:25)
        at com.sun.corba.se.internal.io.IIOPInputStream.readObject(Native
Method)
        at
com.sun.corba.se.internal.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java

:1160)
        at
com.sun.corba.se.internal.io.IIOPInputStream.inputObject(IIOPInputStream.java:785)

        at
com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:2

29)
        at
com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.jav

a:234)
        at
com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:194)

        at
com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:985)

        at examples.hello._Hello_Stub.getRecursive(Unknown Source)
        at examples.hello.HelloClient.go(HelloClient.java:48)
        at examples.hello.HelloClient.main(HelloClient.java:25)
java.io.IOException: Serializable readObject method failed internally
        at
com.sun.corba.se.internal.io.IIOPInputStream.throwExceptionType(Native Method)
        at
com.sun.corba.se.internal.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:2

41)
        at
com.sun.corba.se.internal.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.jav

a:234)
        at
com.sun.corba.se.internal.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:194)

        at
com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:985)

        at examples.hello._Hello_Stub.getRecursive(Unknown Source)
        at examples.hello.HelloClient.go(HelloClient.java:48)
        at examples.hello.HelloClient.main(HelloClient.java:25)
java.rmi.MarshalException: CORBA MARSHAL 0 No; nested exception is:
        org.omg.CORBA.MARSHAL: Unable to read value from underlying bridge :
Serializable readObject method failed internally minor code: 0 completed: No
org.omg.CORBA.MARSHAL: Unable to read value from underlying bridge :
Serializable readObject me
thod failed internally minor code: 0 completed: No
        at
com.sun.corba.se.internal.iiop.CDRInputStream.read_value(CDRInputStream.java:990)

        at examples.hello._Hello_Stub.getRecursive(Unknown Source)
        at examples.hello.HelloClient.go(HelloClient.java:48)
        at examples.hello.HelloClient.main(HelloClient.java:25)

Here's a simple example that reproduces the problem:

package examples.hello;
import java.io.*;
public class SerObj implements java.io.Serializable {
    public String name;
    public SerObj ref;
    public SerObj() {
        name = "default";
        ref = null;
    }
    public SerObj(String _name, SerObj _ref) {
        name = _name;
        ref = _ref;
    }
    public String toString() {
        return "SerObj("+name+")";
    }
    private void writeObject(java.io.ObjectOutputStream stream)
        throws IOException {
        stream.writeObject(name);
        stream.writeObject(ref);
    }
    private void readObject(java.io.ObjectInputStream stream)
       throws IOException, ClassNotFoundException {
       name = (String)stream.readObject();
       ref = (SerObj)stream.readObject();
   }
}

package examples.hello;

import java.rmi.Remote;
import java.rmi.RemoteException;

public interface Hello extends Remote {
    String sayHello() throws RemoteException;
    SerObj getNonRecursive() throws RemoteException;
    SerObj getRecursive() throws RemoteException;
}

package examples.hello;

import javax.rmi.PortableRemoteObject;
import java.rmi.RemoteException;

public class HelloImpl implements Hello {

    public HelloImpl() throws RemoteException {
        super();
    }

    public String sayHello() {
        return "Hello World!";
    }
    
    public SerObj getRecursive() throws RemoteException {
        SerObj obj = new SerObj();
        obj.name = "recursive";
        obj.ref = obj;
        return obj;
    }
    public SerObj getNonRecursive() throws RemoteException {
        SerObj obj = new SerObj();
        obj.name = "nonrecursive1";
        obj.ref = new SerObj();
        obj.ref.name = "nonrecursive2";
        return obj;
    }
}

package examples.hello;

import java.io.*;
import javax.rmi.PortableRemoteObject;
import javax.rmi.CORBA.Stub;
import javax.naming.*;

    /**
     * This class runs the hello client.
     */
public class HelloClient {

    /**
     * Usage (property values are the defaults):
     * java HelloClient
     */
    public HelloClient() {
    super();
    }

    public static void main(String args[]) {
HelloClient that = new HelloClient();
        try {
that.go();
        } catch (Exception e) {
e.printStackTrace();
        }
    }

    /**
     * Run the test
     */

    private void go() throws Exception {

org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init((String[])null, null);

        FileInputStream f = new FileInputStream("t.tmp");
        ObjectInputStream s = new ObjectInputStream(f);
        Hello helloStub = (Hello)s.readObject();
        ((Stub)helloStub).connect(orb);
System.out.println(helloStub.sayHello());
        System.out.println("get non-recursive:");
        System.out.println(helloStub.getNonRecursive().toString());
        System.out.println("get recursive:");
        System.out.println(helloStub.getRecursive().toString());
    }
}

package examples.hello;

import java.io.*;
import javax.rmi.PortableRemoteObject;
import javax.rmi.CORBA.Stub;
import javax.naming.*;

    /**
     * This class runs the hello server.
     */
public class HelloServer {

    /**
     * Usage (property values are the defaults):
     * java HelloServer
     */
    public HelloServer() {
    super();
    }

    public static void main(String args[]) {
HelloServer that = new HelloServer();
        try {
that.go();
        } catch (Exception e) {
e.printStackTrace();
        }
    }

    /**
     * Run the test
     */

    private void go() throws Exception {

org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init((String[])null, null);

HelloImpl helloImpl = new HelloImpl();
// If HelloImpl does not extend PortableRemoteObject,
// then need to explicitly export it.
        PortableRemoteObject.exportObject(helloImpl);
        Stub helloStub = (Stub)PortableRemoteObject.toStub(helloImpl);

        //Stub helloStub = (Stub)PortableRemoteObject.toStub(new HelloImpl());

        helloStub.connect(orb);

FileOutputStream f = new FileOutputStream("t.tmp");
        ObjectOutputStream s = new ObjectOutputStream(f);
        s.writeObject(helloStub);

        // Hang around
System.out.println("Entering orb.run()");
orb.run();
    }
}

#!/bin/bash
set -e
PS4="runtest> "
set -x
java examples.hello.HelloServer&
sleep 5
server=$!
java examples.hello.HelloClient
kill -9 $server
(Review ID: 113809)

======================================================================

*******************************************************************************
muthu.anbumani@eng 2001-07-27


- Verification of the Attached Testcase against the Following builds Done Successfully.

- Build: j2sdk-1_4_0-beta_refresh-bin-b73-solsparc-25_jul_2001
- Build: j2sdk-1_3_1_01-fcs-bin-solsparc-27_jun_2001
********************************************************************************