IT44914: After upgrading to MQ 9.3.3 CD release, .Net application reportserror System.TypeInitializationException.

APAR status

• Closed as program error.

Error description

• After upgrading to MQ 9.3.3 CD release, a .Net application on
  Windows fails with the following exception:
  
  Error connecting to qmgr: System.TypeInitializationException:
  The type initializer for 'IBM.WMQ.MQQueueManager' threw an
  exception. ---> System.ArgumentException: The path is not of a
  legal form.
    at System.IO.Path.NewNormalizePath(String path, Int32
  maxPathLength, Boolean expandShortPaths)
    at System.IO.Path.NormalizePath(String path, Boolean
  fullCheck, Int32 maxPathLength, Boolean expandShortPaths)
    at System.IO.Path.GetFullPathInternal(String path)
    at System.IO.Path.GetFullPath(String path)
    at System.IO.FileSystemWatcher.StartRaisingEvents()
    at System.IO.FileSystemWatcher.set_EnableRaisingEvents(Boolean
  value)
    at IBM.WMQ.MQClientCfg.CheckForMqclientIniFileChanges()
    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 ---
  
  The above error is thrown when running the .Net exception with
  system account and mqclient.ini doesn't exist in any of the
  three location mentioned below:
  1. In current directory
  2. In MQ_DATA_PATH
  3. In HOMEDRIVE\HOMEPATH.
  

Local fix

• When running the .Net application with system account, make sure
  that the mqclient.ini file exists in one of 3 location mentioned
  below:
  1. In current directory
  2. In MQ_DATA_PATH
  3. In HOMEDRIVE\HOMEPATH.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users who are using MQ 9.3.3 CD release and running a .Net
  application using the system account on Windows.
  
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  When MQ client was upgraded to 9.3.3 CD release and .Net
  application was run with system account. Exception
  System.TypeInitializationException was thrown to the
  application. This exception was thrown as the mqclient.ini
  didn't exist in one of the three locations mentioned below:
  1. In current directory
  2. In MQ_DATA_PATH
  3. In HOMEDRIVE\HOMEPATH
  
  A coding error in the managed .Net layer caused the path and
  filter properties of FileSystemWatcher to be empty, which caused
  the exception
  

Problem conclusion

• Managed .Net client code has been corrected so that the path and
  filter properties of FileSystemWatcher not to be empty.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.x CD    9.3.6
  
  The latest available maintenance can be obtained from
  'IBM MQ Recommended Fixes'
  https://www.ibm.com/support/pages/recommended-fixes-ibm-mq
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'IBM MQ
  Planned Maintenance Release Dates'
  https://ibm.biz/mqplannedmaintenance
  
  ---------------------------------------------------------------
  

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

  MQ BASE V9.3

• Fixed component ID

  5724H7291

Applicable component levels