Name: dsR10051 Date: 08/23/2000



The method java.beans.Introspector.getBeanInfo
does not get BeanInfo correctly. The IndexedPropertyDescriptor object
got by this BeanInfo is corrupted. It can contain null indexed reader or writer
instead valid object.


Here is a minimized test:
import java.beans.*;

public class IntrospectorTest02 {

    public static void main (String args[]) {

      try {
        BeanInfo bi = Introspector.getBeanInfo(Wombat.class);
        PropertyDescriptor[] pds = bi.getPropertyDescriptors();
        for (int i = 0; i < pds.length; i++) {
            if(pds[i] instanceof IndexedPropertyDescriptor) {
                System.out.println("IndexedPropertyDescriptor found: " + pds[i].getName());
                System.out.println("Setter: " + ((IndexedPropertyDescriptor)pds[i]).getIndexedWriteMethod());
                System.out.println("Getter: " + ((IndexedPropertyDescriptor)pds[i]).getIndexedReadMethod());
            }
        }
      } catch (Exception e) {
        e.printStackTrace();
      }

    }
}

class Wombat {
    public Wombat brother[] = new Wombat[3];

    public void setBrother(int index, Wombat w) {
        brother[index] = w;
    }
    public Wombat getBrother(int index) {
        return brother[index];
    }

}

--- Output: ---
%java -version
java version "1.4.0beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0beta-b28)
Java HotSpot(TM) Core VM (build 1.3-internal, interpreted mode)
%java IntrospectorTest02
IndexedPropertyDescriptor found: brother
Setter: public void Wombat.setBrother(int,Wombat)
Getter: null
%

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