PH12370: DFHSJ0001 AN ABEND (CODE 0C4/AKEA) HAS OCCURRED AT X'4EF2' IN MODULE DFHSJJS.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After an upgrade to CICS 5.4, customer is getting abends related
  to their Liberty JVM.
  
  They deploy the applications by disabling the application
  bundle, discarding it and reinstalling it again.
  
  There, they get following error message:
  DFHSJ0001 An abend (code 0C4/AKEA) has occurred at
  offset
  X'4EF2' in module DFHSJJS.
  
  In the trace, we can see that we fail on :
  SJ    T800D XM 1102 XMAT  EXIT  TERMINATE_TRANSACTION/OK
  RET-AB64B4A0 14:58:23.2923232763 00.0000002998 =0327785
  
  SJ    T800D SJ 0B02 SJJS  EXIT  TERMINATE_TRANSACTION/OK
  RET-640FE763 14:58:23.2923234233 00.0000001469 =0327786
  
  SJ    T800D SJ 0B01 SJJS  ENTRY SWITCH_PTHREAD_CONTEXT
  NEW_USERID()
  RET-640FE763 14:58:42.9728876308 19.6805642075*=0342967
  
  SJ    T800D SJ 0B05 SJJS  *EXC* RECOVERY_ENTERED
  FUNCTION(SWITCH_PTHREAD_CONTEXT) NEW_USERID()
  

Local fix

• NA
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 in DFHSJJS when processing a   *
  *                      SWITCH_PTHREAD_CONTEXT call outside of  *
  *                      a CICS task.                            *
  *                                                              *
  *                      ABEND AKEA in DFHSJIN during task       *
  *                      termination of a Liberty task.          *
  ****************************************************************
  CICS has a Liberty JVM server with the cicsts:link-1.0 feature
  active.  At least one Link to Liberty application is installed.
  
  It is possible for Liberty to call the CICSThreadIdentityService
  outside of a CICS task.  If this happens on a thread that
  previously ran a Link to Liberty request, then an abend 0C4 can
  occur in DFHSJJS FUNCTION(SWITCH_PTHREAD_CONTEXT).
  
  If a Link to Liberty task runs on a thread that was previously
  used for an internal Liberty function (e.g. config refresh) and
  the task uses DB2 then the following error is seen at task
  termination;
  
  "T2zos®T2zosCicsApi.checkApiStatus: Thread is not CICS-DB2
  compatible: CICS_REGION_BUT_API_DISALLOWED"
  
  When the next Liberty task uses this thread an abend AKEA will
  occur in DFHSJIN when attempting to clean up the task state at
  the end of the task.
  

Problem conclusion

• The CICS Link to Liberty code has been updated to correctly
  manage the state of the thread in these problem scenarios.
  

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:

  UI64102 UI64103

Modules/Macros

• DFJ@H356 DFJ@H417 DFJ@H467
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R10D PSY UI64102

     UP19/07/10 P F907

• R200 PSY UI64103

     UP19/08/01 P F907

Fix is available

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