PM34088: An abend0C4 occurs on termination of the CICS TG JVM when running local mode sample CTGTESTL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Running the CICS TG sample job CTGSTESTL to test configuration
  of local mode CICS TG on z/OS results in an abend0C4.
  The following message is written to the CTGTESTL job log:
  CEE3204S The system detected a protection exception (System
  Completion Code=0C4).
  
  Additional search words:
  abends0c4 abend 0c4 msgCEE3204S msgCEE3204 CEE3204
  

Local fix

• Specify the following environment variable:
  IBM_JAVA_OPTIONS="-XXallowvmshutdown:false"
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of CICS Transaction Gateway for    *
  *                 z/OS.                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: CICS TG local mode application          *
  *                      terminated with abend0C4 after sending  *
  *                      ECI requests to CICS servers over EXCI. *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Java6 SR5 and later exposes an error in the way CICS TG uses
  cancellation cleanup handlers. CICS TG places a thread specific
  cleanup handler on the cancellation cleanup stack but does not
  remove the handler. JVM termination processing removes the
  cleanup handler routine, but a pointer to the routine persists.
  Subsequently Language Environment attempts to run the referenced
  routine, but the routine has already been removed from memory,
  resulting in an abend0C4.
  A CEEDUMP indicates that an exception has occurred in CEEUCALL.
  

Problem conclusion

• CICS TG has been changed to that the cleanup handler routine is
  not registered. This stops the JVM termination process
  attempting to run the cleanup handler routine, and prevents the
  reported abend0C4.
  

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:

  UK68094

Modules/Macros

•    CTG00470 CTG00471 CTG00591 CTG00592
  

Fix information

• Fixed component name

  CTG V8 FOR Z/OS

• Fixed component ID

  5655W1000

Applicable component levels

• R800 PSY UK68094

     UP11/06/03 P F106

Fix is available

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