PM64316: DFHML0100 Z/OS XML SYSTEM SERVICES PARSER FOR FUNCTION PARSE FAILED WITH RETURN CODE X'0000000C' AND REASON CODE X'3063'.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CICS acts as a Web Service requester using HTTP protocol.
  If a server responds with HTTP compression
  e.g.'Content-Encoding: gzip' the XML parsing may fail with
  DFHML0100 with return code X'0000000C' and reason code X'3063'
  because the SOAP envelop does not start with a'<' or white
  space.
  It appears that CICS fails to specify an appropriate
  'accept-encoding:' statement in the HTTP header.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHML0100 Z/OS XML System Services      *
  *                      parser for function PARSE failed with   *
  *                      return code X'0000000C' and reason code *
  *                      X'3063'.                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  CICS is acting as a Web Service requester. A request is sent
  over HTTP to a remote WebSphere server. The WebSphere server has
  HTTP compression turned on.
  The CICS HTTP request does not contain an HTTP Accept-Encoding
  header so WebSphere assumes that CICS is able to support any
  encoding and sends back a compressed response correctly
  identified with a "Content-Encoding: gzip" HTTP header.
  CICS has no support for compressed HTTP messages so the body of
  the response is given to the pipeline code unchanged. This gets
  passed to the z/OS XML parser which throws an exception because
  the first non-whitespace character is not '<'. The failure is
  reported with the following message.
  .
  DFHML0100  Z/OS XML System Services parser for function PARSE
  failed with return code X'0000000C' and reason code X'3063'.
  
  Additional keywords: MSGDFHML0100 ML0100 MSGML0100
  

Problem conclusion

• CICS has been changed so that when it is a Web Service requester
  an Accept-Encoding header (with a blank value) is added to the
  HTTP request. This informs the remote server that CICS only
  supports messages in their original format and does not support
  any kind of compression.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  UK79358 UK79359

Modules/Macros

•    DESPITH  DFHPITH
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R600 PSY UK79358

     UP12/06/15 P F206

• R700 PSY UK79359

     UP12/06/15 P F206

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.