PM53866: MISSING NULL ELEMENT DUE TO PROPERTY.GETDEFAULT() RETURN INCORRECT RESULT.

8.0.0.3: WebSphere Application Server V8.0 Fix Pack 3
8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15

APAR status

• Closed as program error.

Error description

• The problem is where property.getDefault() will return an
  incorrect result. For primitive types boolean, byte, char,
  double, float, int, short, and long,given a property p of that
  type for which there is no value set and no default value,
  dataObject.get(p) will return an implicit default value of false
  for boolean, and 0 for the other types.
  
  p.getDefault() is also returning this implicit default,
  but it should not, and this triggers the BO layer to unset
  the property rather than set its value to null.
  Unsetting the value will not produce an XML element with
  attribute xsi:nil="true" in the serialization;
  the value must be set to null.
  
  Under WebSphere Process Server environment, this issue can be
  observed only with Lazy parsing mode.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of the Service Data Objects (SDO) API *
  *                  in IBM WebSphere Application Server V8.0    *
  *                  and WebSphere Process Server                *
  ****************************************************************
  * PROBLEM DESCRIPTION: property.getDefault() returns           *
  *                      incorrect result                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If no default value is specified for a property, the
  Property.getDefault() method returns a default value for
  properties with an instance class of a primitive type, based
  on that type. For example, this method returns false for a
  boolean property. The correct return value is null. false
  should only be returned when the value of the property is
  retrieved.
  

Problem conclusion

• The Property.getDefault() method has been corrected to not use
  implicit defaults based on the instance class.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.0.0.3.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

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

  PM53362

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

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R800 PSY

     UP