-
Bug
-
Resolution: Fixed
-
P4
-
1.4.0, 1.4.2
-
b78
-
generic, x86
-
generic, windows_xp
Name: gm110360 Date: 01/28/2004
FULL PRODUCT VERSION :
java version "1.4.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-b21)
Java HotSpot(TM) Client VM (build 1.4.1-b21, mixed mode)
FULL OS VERSION :
Microsoft Windows XP [Version 5.1.2600]
A DESCRIPTION OF THE PROBLEM :
I wrote a BeanInfo class that returns one PropertyDesctiptor that has no get method and no set method. When I do a Introspector.getBeanInfo, I receive all PropertyDesctiptors except this one.
Since that has worked in JDK131, I compared both sourcefiles of Introspector.java, and I found in 141 a new private Method 'processPropertyDescriptors' which I think is the reason.
see my comment in the source code
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import java.beans.*;
public class IntrospectorBug
{
public static void main(String[] args)
{
try
{
BeanInfo bi = Introspector.getBeanInfo(IntrospectorBug.class);
PropertyDescriptor[] pd = bi.getPropertyDescriptors();
//pd should now contain all of my PropertyDescriptors, 'f' and 'x', but in fact it only contains 'f'.
for (int i=0; i<pd.length; i++)
{
String n = pd[i].getName();
System.out.println(n);
}
}
catch (Exception e)
{
e.printStackTrace();
System.exit(1);
}
System.exit(0);
}
private int f=0;
public void setF(int P_f) { f = P_f; }
public int getF() { return f; }
}
public class IntrospectorBugBeanInfo extends SimpleBeanInfo
{
public PropertyDescriptor[] getPropertyDescriptors()
{
try
{
PropertyDescriptor fDes = new PropertyDescriptor("f", IntrospectorBug.class, "getF", "setF");
PropertyDescriptor xDes = new PropertyDescriptor("x", IntrospectorBug.class, null, null);
xDes.setValue("name", "value");
return new PropertyDescriptor[] {fDes, xDes};
}
catch (IntrospectionException e)
{
e.printStackTrace();
return null;
}
}
}
---------- END SOURCE ----------
Release Regression From : 1.3.1
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.
(Incident Review ID: 182196)
======================================================================
FULL PRODUCT VERSION :
java version "1.4.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-b21)
Java HotSpot(TM) Client VM (build 1.4.1-b21, mixed mode)
FULL OS VERSION :
Microsoft Windows XP [Version 5.1.2600]
A DESCRIPTION OF THE PROBLEM :
I wrote a BeanInfo class that returns one PropertyDesctiptor that has no get method and no set method. When I do a Introspector.getBeanInfo, I receive all PropertyDesctiptors except this one.
Since that has worked in JDK131, I compared both sourcefiles of Introspector.java, and I found in 141 a new private Method 'processPropertyDescriptors' which I think is the reason.
see my comment in the source code
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import java.beans.*;
public class IntrospectorBug
{
public static void main(String[] args)
{
try
{
BeanInfo bi = Introspector.getBeanInfo(IntrospectorBug.class);
PropertyDescriptor[] pd = bi.getPropertyDescriptors();
//pd should now contain all of my PropertyDescriptors, 'f' and 'x', but in fact it only contains 'f'.
for (int i=0; i<pd.length; i++)
{
String n = pd[i].getName();
System.out.println(n);
}
}
catch (Exception e)
{
e.printStackTrace();
System.exit(1);
}
System.exit(0);
}
private int f=0;
public void setF(int P_f) { f = P_f; }
public int getF() { return f; }
}
public class IntrospectorBugBeanInfo extends SimpleBeanInfo
{
public PropertyDescriptor[] getPropertyDescriptors()
{
try
{
PropertyDescriptor fDes = new PropertyDescriptor("f", IntrospectorBug.class, "getF", "setF");
PropertyDescriptor xDes = new PropertyDescriptor("x", IntrospectorBug.class, null, null);
xDes.setValue("name", "value");
return new PropertyDescriptor[] {fDes, xDes};
}
catch (IntrospectionException e)
{
e.printStackTrace();
return null;
}
}
}
---------- END SOURCE ----------
Release Regression From : 1.3.1
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.
(Incident Review ID: 182196)
======================================================================
- relates to
-
JDK-6582164 JavaBeans tests should be open source
- Resolved