IT26021: XMS .NET multithreaded async client consumer application fails to process poison messages in bindings mode.

APAR status

• Closed as program error.

Error description

• If XMS .NET Multithreaded Async consumer application is used in
  bindings mode to consume poison messages, the application
  crashes with the following error:
  
  Failed to create XMS message.
  The wrong message type or properties were specified when
  creating a base message.
  Linked Exception : System.ArgumentOutOfRangeException: Valid
  values are
  between 0 and 65535, inclusive.
  Parameter name: codepage
     at IBM.XMS.Client.WMQ.Common.WmqCcsid.GetDotnetEncoding(Int32
  mqCcsid)
     at
  IBM.XMS.Client.WMQ.WmqReceiveMarshal.ConstructProviderMessageFro
  mRFH2(In
  t32 messageBodyStyle)] [False]
  

Local fix

• The exception is seen only in Bindings Mode. If the application
  is run using Managed/Unmanaged Mode,the exception is not thrown.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of XMS .NET multithreaded async consumer applications
  processing poison messages in bindings mode.
  
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  If XMS .NET Multi threaded Async consumer application is used in
  bindings mode to consume poison messages,XMS .NET client
  intermittently failed to parse the message encoding field  which
  leads to the application crashes.
  

Problem conclusion

• IBM has not been able to reproduce the reported issue, and so
  additional debug capabilities have been added such that
  additional information will be available to IBM support should
  the problem reoccur.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.15
  v9.0 LTS   9.0.0.11
  v9.1 CD    TBC.
  v9.1 LTS   9.1.0.6
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

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

  IBM MQ BASE MP

• Fixed component ID

  5724H7251

Applicable component levels