4.0.1, 4.0.2, 4.0.3; PQ63548: CORBA.MARSHAL exceptions with interoperability
 Downloadable files
 
Abstract
Inter-op problem found when passing embedded valueTypes between WebSphere® Application Server releases
 
Download Description
USERS AFFECTED:
All WebSphere Application Server users who pass embedded valueType between WebSphere Application Server releases.

PROBLEM DESCRIPTION:
Inter-op problem found when passing embedded valueTypes between WAS releases.

User may experience org.omg.CORBA.MARSHAL exceptions. Note, that these exceptions are sometimes masked by other exceptions in WAS or user application code. Errors are sometimes hard
to identify.

It is strongly recommended that fixes are applied as soon as possible to avoid future inter-op issues. The user may experience this problem even after fixes have been applied, if the user has saved off his IORs. If this is the case, the user needs to re-export those IORs for the fixes to take their full effect.

Known affected combinations
V3.5 ==> V3.5.6, V4.0.3 or higher releases
V4.0 ==> V3.5.6, V4.0.3 or higher releases

PROBLEM CONCLUSION:
The problem is happening because the IOR's created by the V4.0.2. WebSphere ORB do not contain an IBM_PARTNER_VERSION tag component, where as those created by the base Java SDK ORB do. Hursley defect 27426 introduced this change into the base ORB com.ibm.rmi.IOR class.

The problem occurs because the 1.3.1 ORB in the development release contains a Connection fix to generate correctly nested valuetype end-tag values when talking to non-IBM ORBs or to IBM ORBs that contain a corresponding fix. When talking to a back level IBM ORB (such as the one in 4.02) the code is supposed to use the old, incorrect end-tag values to avoid inter-op problems. But in this case, because the valuetype is sent as part of the very first flow to the server, there is no PartnerVersion information available, so we think we are talking to a non-IBM ORB and generate the "correct" (but bad for 4.0.2) end-tag values.
 
Prerequisites
None
 
 
Installation instructions
Please review the readme for detailed installation instructions
 
URL LANGUAGE SIZE(Bytes)
Readme US English 2653
 
Download package
What is DD?
DOWNLOAD RELEASE DATE LANGUAGE SIZE(Bytes) Download Options
PQ63548 - 4.0.1 7/30/2002 US English 1078808 FTP DD
PQ63548 - 4.0.2 7/30/2002 US English 1078808 FTP DD
PQ63548 - 4.0.3 7/30/2002 US English 1078916 FTP DD
 
Technical support
800-IBM-SERV U.S. Only
 
Problems (APARs) fixed
PQ63548
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Object Request Broker (ORB)
Operating system(s): HP-UX
Software version: 4.0.1
Software edition:
Reference #: 4004757
IBM Group: Software Group
Modified date: May 21, 2003