PH23867: MQ V9: MAKEDEF OUTPUT FROM DEFINE TOPIC SHOWS INCORRECT TOPICSTR

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• DEFINE TOPIC command created by MAKEDEF incorrectly contains
  TOPICSTR(' ') rather than TOPICSTR('') i.e. a space character
  rather than a null topicstring.
  

Local fix

• na
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 0 Modification 0 and Release 1       *
  *                 Modification 0.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: System topics are defined with an       *
  *                      incorrect topic string ' ' when using   *
  *                      commands generated by the MAKEDEF       *
  *                      option of CSQUTIL.                      *
  *                      This can lead to topic strings          *
  *                      generated based on these objects being  *
  *                      unexpectedly prefixed with '/'.         *
  ****************************************************************
  When CSQUTIL is used with the MAKEDEF option, the utility
  creates the DEFINE TOPIC command assuming a minimum length of
  1 for the topic string attribute, resulting in topics with
  the null topic string '' replaced with a blank topic string ' '.
  However there are system topics (SYSTEM.BASE.TOPIC,
  SYSTEM.BROKER.DEFAULT.STREAM and SYSTEM.BROKER.DEFAULT.STREAM)
  which can validly contain a null topicstr.
  
  If this output is subsequently used to redefine the topics, this
  results in these system topics being defined with the wrong
  topic string.
  

Problem conclusion

• CSQUCMDS is changed to correctly handle topics with a null
  topic string.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PH08073

• APAR is sysrouted TO one or more of the following:

  UI69044 UI69045

Modules/Macros

• CSQOXATR CSQUCMDS
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R000 PSY UI69044

     UP20/05/28 P F005

• R100 PSY UI69045

     UP20/05/28 P F005

Fix is available

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