Name: dc32491 Date: 03/28/2001


The problem happens with both Java 1.2.2 and Java 1.3.0 on both NT and Solaris.

JDK ORB.create_value_tc() throws a NullPointerException when the concrete base
parameter is passed a null. The problem happens with both applets and
applications. It is platform & JDK version independent (it happens on both NT
and Solaris, with both JDK1.2.2 and JDK1.3.0).

Here is a simple test case:

======== ResultObject.java =============

import java.util.*;
import java.io.*;
import java.text.*;

public class ResultObject implements Serializable
{
     public ResultObject()
     {
     }
}

========= Tester.java ======================

public class Tester extends java.applet.Applet{
  public void init() {
    try {
      System.out.println("Initializing ORB in main");
      org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(this,null);
      org.omg.CORBA.TypeCode tc =
orb.create_value_tc("RMI:ResultObject:71DA8BE7F971128","ResultObject",(short)0,n
ull, new org.omg.CORBA.ValueMember[0]);
    } catch(Exception e) {
      e.printStackTrace();
    }
  }

  public static void main(String [] args) {
    try {
      System.out.println("Initializing ORB in main");
      org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args,null);
      org.omg.CORBA.TypeCode tc =
orb.create_value_tc("RMI:ResultObject:71DA8BE7F971128","ResultObject",(short)0,n
ull, new org.omg.CORBA.ValueMember[0]);
    } catch(Exception e) {
      e.printStackTrace();
    }
  }
}

=================== tester.html =======================

Test Applet
<br>
open java console to see results

<applet archive="" code="Tester.class" width="400" height="30">

</applet>


Steps to reproduce:
1. compile the above two java files:
     javac ResultObject.java Tester.java
2. run the application:
     java Tester
   and got the following exception stack trace:
   
   Initializing ORB in main
   java.lang.NullPointerException
at com.sun.CORBA.idl.TypeCodeImpl.<init>(TypeCodeImpl.java:492)
at com.sun.CORBA.idl.TypeCodeImpl.convertToNative(TypeCodeImpl.java:873)
at com.sun.CORBA.idl.TypeCodeImpl.<init>(TypeCodeImpl.java:688)
at com.sun.CORBA.idl.ORB.create_value_tc(ORB.java:1082)
at Tester.main(Tester.java:17)

3. run the applets with jdk1.2.2 or jdk1.3.0 appletviewer:
      appletviewer http://&lt;host&gt;:&lt;port&gt;/tester.html
   and got the following output:

   Initializing ORB in main
   java.lang.NullPointerException
at
com.sun.corba.se.internal.corba.TypeCodeImpl.<init>(TypeCodeImpl.java:495)
at
com.sun.corba.se.internal.corba.TypeCodeImpl.convertToNative(TypeCodeImpl.java:8
85)
at
com.sun.corba.se.internal.corba.TypeCodeImpl.<init>(TypeCodeImpl.java:690)
at com.sun.corba.se.internal.corba.ORB.create_value_tc(ORB.java:1303)
at Tester.init(Tester.java:7)
        at sun.applet.AppletPanel.run(AppletPanel.java:344)
        at java.lang.Thread.run(Thread.java:484)
(Review ID: 119133)
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