IC86548: DURING AN MQGET, WebSphere MQ .NET CLIENT ENCOUNTERS ERROR "UNABLE TO FIND AN ENTRY POINT NAMED 'ZSTMQGET'

WebSphere MQ V7.5 Fix Pack 7.5.0.1
Fix Pack 7.1.0.3 for WebSphere MQ V7.1

APAR status

• Closed as program error.

Error description

• In .NET, if you set the TRANSPORT_PROPERTY to
  MQC.TRANSPORT_MQSERIES_CLIENT and try to get a message with
  option MQC.MQGMO_CONVERT then you will get the following
  exception during execution of method queue.Get(Message, GMO):
  
  Exception caught: System.EntryPointNotFoundException: Unable to
  find an entry point named 'zstMQGET' in DLL
  'C:\Program Files(x86)\IBM\WebSphere MQ\bin64\mqic.dll'.
  at IBM.WMQ.MQDestination.Get(MQMessage message,
  MQGetMessageOptions gmo, Int32 maxMsgSize)
  at IBM.WMQ.MQDestination.Get(MQMessage message,
  MQGetMessageOptions gmo)
  at SimpleGet.SimpleGet.GetMessages()
  at SimpleGet.SimpleGet.Main(String[] args)
  

Local fix

• 1 - Do not use the option MQGMO_CONVERT
  or
  2 - Use MQC.TRANSPORT_MQSERIES_MANAGED instead of CLIENT
  or
  3 - Use the function queue.Get(Message, GMO, maxMsgSize);
  instead of queue.Get(Message, GMO);
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of WebSphere MQ v7.1 and v7.5 unmanaged .NET client
  applications.
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM SUMMARY:
  The WebSpehere MQ .NET layer invokes the native function
  zstMQGET when run in unmanaged mode. The
  System.EntryPointNotFoundException is reported since this
  function had not been exported by the mqic library.
  

Problem conclusion

• The WebSphere MQ code has been modified to export the zstMQGet
  function from mqic.dll.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.1
  Platform           Fix Pack 7.1.0.3
  --------           --------------------
  Windows            7.1.0.3
  
  Platform           v7.5
  --------           --------------------
  Multiplatforms     7.5.0.1
  
  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

  WMQ WINDOWS V7

• Fixed component ID

  5724H7220

Applicable component levels

• R710 PSY

     UP