IT17812: Unmanaged .NET application throws type initializer error.

APAR status

• Closed as program error.

Error description

• An unmanaged .NET application using the Redistributable Client
  feature introduced in MQ v8.0.0.4 fails with a "type
  initializer" exception.
  
  Running SimplePublish.exe sample reports following exception :-
  
  Connecting to queue manager.. Exception caught:
  System.TypeInitializationExcepti
  on: The type initializer for 'IBM.WMQ.MQQueueManager' threw an
  exception. ---> S
  ystem.Reflection.TargetInvocationException: Exception has been
  thrown by the tar
  get of an invocation. --->
  System.Reflection.TargetInvocationException: Exceptio
  n has been thrown by the target of an invocation. --->
  System.NullReferenceExcep
  tion: Object reference not set to an instance of an object.
     at IBM.WMQ.Nmqi.NativeManager.InitializeNativeApis(String
  mode)
     --- End of inner exception stack trace ---
     at IBM.WMQ.MQCommonServices..ctor()
     --- End of inner exception stack trace ---
  ..
     at IBM.WMQ.CommonServices.CreateCommonServices()
     at IBM.WMQ.CommonServices.TraceConstructor(String objectId,
  String sccsid)
     at IBM.WMQ.Nmqi.NmqiEnvironment..ctor(NmqiPropertyHandler
  nmqiPropertyHandler
  )
     at IBM.WMQ.Nmqi.NmqiFactory.GetInstance(NmqiPropertyHandler
  properties)
     at IBM.WMQ.MQQueueManager..cctor()
     --- End of inner exception stack trace ---
     at IBM.WMQ.MQQueueManager..ctor(String queueManagerName,
  Hashtable properties
  )
     at SimplePublish.SimplePublish.PutMessages()
     at SimplePublish.SimplePublish.Main(String[] args)
  Sample execution FAILED!
  
  End of SimplePublish Application
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of the IBM MQ .NET Redistributable client
  
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The logic to locate the MQ .NET runtime library (amqmdnet.dll)
  when running a .NET application has changed with redistributable
  clients. A coding error within this change meant that the MQ
  .NET client was unable to locate runtime library when a client
  of lower version is installed in the environment.
  

Problem conclusion

• The MQ .NET redistributable client has been updated to correctly
  locate the runtime library from the client directory when a
  lower version of client is installed.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.7
  v9.0 CD    9.0.2
  v9.0 LTS   9.0.0.1
  
  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 BASE MULTIP

• Fixed component ID

  5724H7251

Applicable component levels

• R800 PSY

     UP