PH17250: DFHSJ0001 ABEND 0C4 OFFSET 5A4A IN DFHSJJS MODULE 19/10/11 PTF PECHANGE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After CICS v5.5 RSU1907 maintenance applied to test Java regions
  started receiving the following errors:
  DFHSJ0001  An abend (code 0C4/AKEA) has occurred at
             offset X'5A4A' in module DFHSJJS.
  a call to DFHSJJS - SWITCH_PTHREAD_CONTEXT  fails.
  .
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users with UI64379 applied          *
  ****************************************************************
  * PROBLEM DESCRIPTION: msgDFHSJ0001 issued after an 0C4 at     *
  *                      offset 54A4 in DFHSJJS.                 *
  ****************************************************************
  A Liberty JVM server is running in CICS.  A Link to Liberty
  application is either added or removed from the JVM.  This
  process causes CICS to create a CJSP task on a Liberty thread.
  The CJSP task is used to add or remove program definitions
  related to the Link to Liberty application.
  
  After the CJSP task completes, the thread it was using is
  returned to the Liberty thread pool.  Liberty then uses this
  thread for work that does not require a CICS task.  As part of
  that work, the security context needs to be set on the thread.
  The CICSThreadIdentityService gets notified that the thread
  security context is changing.  An IsCICS.getApiStatus() call is
  made to see if there is a current CICS task environment.  This
  call incorrectly returns CICS_REGION_AND_API_ALLOWED which
  causes a DFHSJJS SWITCH_PTHREAD_CONTEXT call to be made.
  
  DFHSJJS suffers an 0C4 abend when accessing the XM TXN control
  block because there isn't actually a transaction running.
  

Problem conclusion

• CICS has been change to correctly clean up the task state after
  a CJSP task has completed.  This will cause
  IsCICS.getApiStatus() to return the correct answer and prevent
  the unexpected call to DFHSJJS SWITCH_PTHREAD_CONTEXT from
  being made.
  

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:

  UI66360

Modules/Macros

• DFHAPJVM DFHAPLJP DFHAXIS2 DFHCAL64 DFHCDJNI DFHCDK64 DFHKETIX
  DFHSJBD  DFHSJDM  DFHSJDS  DFHSJDUF DFHSJIN  DFHSJIS  DFHSJIX
  DFHSJJS  DFHSJL   DFHSJLOG DFHSJNA  DFHSJNDI DFHSJNR  DFHSJNT
  DFHSJPP  DFHSJPTI DFHSJRE  DFHSJRL  DFHSJRM  DFHSJRT  DFHSJSA
  DFHSJSC  DFHSJSM  DFHSJSR  DFHSJST  DFHSJTE  DFHSJTH  DFHSJTRI
  DFHSJWL  DFHSJXM  DFJ@H350 DFJ@H356 DFJ@H360 DFJ@H387 DFJ@H427
  DFJ@H448 DFJ@H467 DFJ@H468 DFJ@H561 DFJDTCOE DFJOUTRE DFJWLPBP
  DFJWLPPL
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R200 PSY UI66360

     UP19/11/12 P F911 {

Fix is available

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