PI45157: WMQ Z/OS V800:JMS APPLICATION FAILS TO GET MESSAGES BY CORRELID DUE TO WRONG CCSID

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When MQ z/OS is upgraded to v800 from v701, JMS getter
  application running on WebSphere Application Server failed to
  get messages even though they were in the queue.
  
  It is because that xcsConvertStringToByteString has converted
  the JMSCorrelationID property to ccsid the queue-manager's
  ccsid,e.g. 5026. It has then tried to find the number of hex
  digits in the property. However, it is using the wrong
  ccsid when checking for a hex digit (using the input ccsid,
  e.g. 1208, rather than the current ccsid, e.g. 5026), hence the
  problem here occurs.
  
  
  Additional Symptom(s) Search Keyword(s):
  2033 RC2033 MQRC_NO_MSG_AVAILABLE
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
  *                 Release 0 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Message selection using JMSMessageID,   *
  *                      JMSCorrelationID or JMSGroupID fails to *
  *                      return a matching message if the        *
  *                      selector contains lower case characters *
  *                      and the qmgr is running in CCSID 5026.  *
  *                                                              *
  *                      Other symptoms include:                 *
  *                      abend 5C6-00C20004, or loops when       *
  *                      calling MQINQMP on a qmgr running in    *
  *                      CCSID 5026.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When message properties or selection strings are converted from
  a String to other data types e.g. Boolean, Float, the qmgr ccsid
  is used. In some CCSIDs, such as 5026, the lower case characters
  are found at a different codepoint to most other EBCDIC CCSIDs.
  The conversion process accounts for this, however logic errors
  in this handling result in the reported symptoms if the value
  being converted involves lowercase characters.
  

Problem conclusion

• CMQXCNVA is changed to correctly handle converting to/from a
  CCSID where the lowercase characters are at a different
  codepoint to the compiler's CCSID.
  000Y
  CMQXCNVA
  CSQACNVA
  CSQUCNVA
  CSQXCNVA
  

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:

  UI30257

Modules/Macros

• CMQXCNVA CSQACNVA CSQUCNVA CSQXCNVA
  

Fix information

• Fixed component name

  WMQ Z/OS 8

• Fixed component ID

  5655W9700

Applicable component levels

• R000 PSY UI30257

     UP15/08/28 P F508

Fix is available

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