PH11409: An API or service request with a Accept-Encoding:gzip,deflate header fails with HTTP response code 500 and BAQR0429W.

APAR status

• Closed as unreproducible in next release.

Error description

• A SAR was created for the RESTful client service provider. On
  the request, the header Accept-Encoding=gzip,deflate was passed
  from the client to z/OS Connect EE. z/OS Connect EE
  passed this to the REST endpoint, which responded correctly.
  z/OS Connect EE failed to handle the returned compressed data
  resulting in an HTTP response code 500 (internal server error)
  being returned. The following messages was issued:
  
  BAQR0429W: API {0} encountered an error while processing a
             request under URL {1}.
  
  The following IOException is recorded in the z/OS Connect EE
  server's FFDC directory:
  
   Exception = java.io.IOException
   Source = com.ibm.zosconnect.service.client.rest.internal.SarRes
   tClientServiceImpl
   probeid = 392
   Stack Dump = java.io.IOException: Unexpected character '?' on
   line 1, column 2
    at com.ibm.json.java.internal.Tokenizer.next
    at com.ibm.json.java.internal.Parser.parse
    at com.ibm.json.java.internal.Parser.parse
    at com.ibm.json.java.JSONObject.parse
    at com.ibm.json.java.JSONObject.parse
    at com.ibm.zosconnect.service.client.rest.internal.RestClientS
       erviceImpl.invoke
    at com.ibm.zosconnect.internal.ZosConnectServiceImpl.apiInvoke
    at com.ibm.zosconnect.internal.ServiceManagerImpl.invoke
    at com.ibm.zosconnect.internal.ApiManagerImpl.invokeApi
    at com.ibm.zosconnect.internal.web.ServiceProxyServlet$3.run
    at com.ibm.ws.webcontainer.async.ServiceWrapper.wrapAndRun
    at com.ibm.ws.webcontainer.async.ContextWrapper.run
    at com.ibm.ws.webcontainer.async.WrapperRunnableImpl.run
    at java.util.concurrent.ThreadPoolExecutor.runWorker
    at java.util.concurrent.ThreadPoolExecutor$Worker.run
    at java.lang.Thread.run(Thread.java:812)
  
  Additional search words: msgBAQR0429W msgBAQR0429 BAQR0429
  SarRestClientServiceImpl IOException IOE
  

Local fix

• Send the request with header:  Accept-Encoding:identify
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of z/OS Connect EE V3.0.           *
  ****************************************************************
  * PROBLEM DESCRIPTION: HTTP response code 500 and message      *
  *                      BAQR0429W are returned when an          *
  *                      Accept-Encoding:gzip,deflate header is  *
  *                      flowed.                                 *
  ****************************************************************
  z/OS Connect EE was passing on gzip compressed data with a valid
  header to the target program, but was not able to process the
  returned gzipped data.
  

Problem conclusion

Temporary fix

Comments

• z/OS Connect EE has been changed to not forward the following
  headers:
  ContentType, ContentEncoding, ContentLanguage, Accept,
  AcceptEncoding, AcceptLanguage
  
  The Accept header will be set to MediaType application/json in
  the flowed request.
  
  The fix for this APAR is expected to be delivered by the PTF for
  z/OS Connect EE V3.0.23.0 (PH13344).
  

APAR Information

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

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

Fix information

• Fixed component name

  Z/OS CONNECT EE

• Fixed component ID

  5655CE300

Applicable component levels