PQ72831: WRITEREPLACE/READRESOLVE NOT ALWAYS INVOKEDIN IBM ORB ON WAS 4. 0.4

APAR status
Closed as program error.

Error description
The version of  ObjectStreamClass for WAS 4.0.4 (in ibmorb.jar)
does not invoke readResolve() and  writeReplace() for
serializable objects.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All WebSphere Application Server users of    *
*                 EJB serialization.                           *
****************************************************************
* PROBLEM DESCRIPTION: The version of ObjectStreamClass for    *
*                      WebSphere 4.0.4 (in ibmorb.jar and      *
*                      rt.jar) does not invoke readResolve()   *
*                      and writeReplace() for serializable     *
*                      objects.                                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
For handling serialization with EJB invocation, the generated
bean stub uses com.ibm.rmi.io.IIOPInputStream (which in turn
uses com.ibm.rmi.io.ObjectStreamClass) to read the serialized
object back. However, the version of ObjectStreamClass for v4
(in ibmorb.jar) had a bug for handling readResolve() and
writeReplace() for serializable objects. The new features the
user might have just implemented for Enum/Flag and FlagHolders
across PT/BT depended on the correct serialization to keep
the reference identity.
Problem conclusion
Not available at this time.  This fix will be in the base ORB
which will be included in a future JDK from Hursley.
Temporary fix Comments
APAR information
APAR number PQ72831
Reported component name WEBSPHERE AES N
Reported component ID 5630A2301
Reported release 400
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2003-04-03
Closed date 2003-04-29
Last modified date 2003-04-29

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
ORB          

Fix information

Applicable component levels
R400 PSY    UP


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ72831
IBM Group: Software Group
Modified date: Apr 29, 2003