PK85590: Cannot set layout property of component in Properties view of th e Visual Editor with IBM JDK 1.6.0

Rational Application Developer for WebSphere Software, Version 7.5.3
Rational Software Architect Standard Edition, Version 7.5.3

APAR status

• Closed as program error.

Error description

• Environment:
  - Operating System: Microsoft Windows XP SP2
    - Product name: IBM JDK 1.6.0 SR3 shipped with Rational
  Software Architect for WebSphere Software 7.5.2
  
  Description of problem:
  Using the reference equality check (== or !=) on the matching
  propertydescriptor objects in lists l1 and l2, a 1.5 JRE shows
  only a couple of that as not identical.  However, the exact same
  application run on a 1.6 JRE will show that none of the objects
  are the same.  It looks like the IBM 1.6 JRE is implemented
  differently than the 1.5 JRE for this API.
  
  Step to reproduce:
  The following Java code mock-up will show a difference between
  the IBM JDK:
  
  Class thisClass = JPanel.class;
  Class superClass = thisClass.getSuperclass();
  
  BeanInfo thisClassBeanInfo =
  java.beans.Introspector.getBeanInfo(thisCl
  BeanInfo superClassBeanInfo =
  java.beans.Introspector.getBeanInfo(superC
  
  List l1 = thisClassBeanInfo.getPropertyDescriptors(); // convert
  the array
  List l2 = superClassBeanInfo.getPropertyDescriptors(); //
  convert the array
  
  // iterate over the lists and compare the propertydescriptors
  that match
  
  If you do a reference equality check (== or !=) on the matching
  propertydescriptor objects in lists l1 and l2 on a 1.5 JRE then
  there are only a couple that are not identical.  However, the
  exact same application run on a 1.6 JRE will show that none of
  the objects are the same.  It looks like the IBM 1.6 JRE is
  implemented differently than the 1.5 JRE for this API.
  
  Workaround:
  Overwrite in bean classes the property descriptors
  

Local fix

Problem summary

• See Error Description
  

Problem conclusion

• Fixed in Rational Software Architect for WebSphere Software
  V7.5.3.  The JDK was updated to SR5 to correct this problem.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  RATL APP DEV WI

• Fixed component ID

  5724J1901

Applicable component levels

• R752 PSN

     UP