IC65573: 2298 MQRC_FUNCTION_NOT_SUPPORTED EXCEPTION WHEN CONNECTING A .NET APP TO A SYSTEM WHICH DOES NOT SUPPORT THE SPI VERBS

WebSphere MQ V7.0 Fix Pack 7.0.1.2
WebSphere MQ V7.0.1 for i5/OS Fix Pack 7.0.1.2

APAR status

• Closed as program error.

Error description

• If a .NET application is talking to a server which does not
  support SPI query calls, the application fails with a 2298
  (FUNCTION_NOT_SUPPORTED) when it attempts to query the SPI
  levels. This results in the MQCONNX call failing.
  The following exception is seen in a WebSphere MQ trace:
  -----}! SPINewHObj (rc=MQRC_FUNCTION_NOT_SUPPORTED)
  ----}  UnmanagedNmqiMQ.SPIQuerySPI(Hconn,int,ref int,
  ref int,ref int,ref int,out int,out int) (rc=OK)
  ---}  UnmanagedNmqiMQ.MQCONNX(String,ref MQCNO,Hconn,
  Phconn,out int,out int) (rc=OK)
  --}  UnmanagedNmqiMQ.MQCONNX(String,MQConnectOptions,
  Phconn,out int,out int) (rc=OK)
  MQException CompCode: 2 Reason: 2298
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of .NET talking to WebSphere MQ systems which do not
  support the SPI verbs, such as WebSphere MQ for VSE.
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM SUMMARY:
  The .NET unmanaged layer assumed that it could query the
  supported SPI interfaces, and failed to take into account there
  are systems, such as on VSE, which do not even implement the
  query function. When used against such a system, an unexpected
  MQRC_FUNCTION_NOT_SUPPORTED was being returned but not handled.
  

Problem conclusion

• The .NET unmanaged interface has been modified to correctly
  handle a MQRC_FUNCTION_NOT_SUPPORTED when querying the
  supported SPI versions, and handle that return code correctly
  as though no SPI verbs are supported.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.0
  Platform           Fix Pack 7.0.1.2
  --------           --------------------
  Windows            U200316
  
  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

• R700 PSY

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