PH29862: DFHWB0002 A SEVERE ERROR (CODE X'070D') HAS OCCURRED IN MODULE DFHWBCL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Client Application is receiving the following
  error.
  .
  DFHWB0002 A severe error (code X'070D') has occurred
  in module DFHWBCL
  .
  Here's the failing Trace Entry.
  .
  070D WBCL
  *EXC* - CONVERT_DATA_ERROR - FUNCTION(READ_RESPONSE)
  TRUNCATE(YES)
   SESSION_TOKEN(17A14000 , 00000368)
  BODY(00000000_1BD9AB42 ,
   00000000_00000000 ,
  00000000_00007918) TIME_OUT_VALUE(12C)
   STATUS_TEXT(1BDA2552 ,
  00000008 , 00000100)
  
  The problem is that the CICS client
  application has received a chunked response from the server.
  The only chunk returned was the zero length chunk. The code in
  DFHWBCL is expecting there to always be at least one chunk of
  data. That first chunk would cause the conversion related
  information to be set properly. If the only chunk is the zero
  length chunk then the conversion information is never set up.
  Later code then assumes that non-SBCS conversion is required
  and calls DFHCCNV passing in data from low core and that leads
  to the conversion error and the DFHWB0002 message and dump.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHWB0002 message code(x'070D') and     *
  *                      dump issued following an outbound HTTP  *
  *                      request to a remote server.             *
  ****************************************************************
  A CICS application makes an outbound HTTP request to a remote
  server.  The server returns a chunked response that consists of
  only the terminating zero length chunk.  It did not send any
  chunks containing useful data.
  
  DFHWBCL is expecting there to always be at least one chunk of
  data. The first chunk would cause codepage conversion
  information to be set. If the only chunk is the zero length
  chunk, the conversion information is never set up.
  
  DFHWBCL attempts to convert the empty chunked response and
  passes invalid conversion data to DFHCCNV.  DFHCCNV returns an
  exception response which then leads to message DFHWB0002 with
  code(x'070D') being issued along with a system dump.
  
  The problem only occurs when the INTO option is used on the
  WEB CONVERSE or WEB RECEIVE commands.  It does not happen if SET
  is used.
  
  Additional keywords:
  msgDFHWB0002 WB0002
  

Problem conclusion

• DFHWBCL has been changed to avoid calling DFHCCNV when only the
  zero length chunk is received.
  

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:

  UI72499 UI72500

Modules/Macros

• DFHWBCL
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R200 PSY UI72500

     UP20/11/13 P F011

• R300 PSY UI72499

     UP20/11/13 P F011

Fix is available

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