JR55574: YOU RECEIVE THE CWTBG0029E ERROR WHEN YOU USE AN IBM BPM REST API WITH A JSON OBJECT

7.5.1.2-WS-BPM-IFJR55574
bpm.8570.cf2016.06.delta.repository.1of2
bpm.8570.cf2016.06.delta.repository.2of2

APAR status

• Closed as program error.

Error description

• When you invoke an IBM Business Process Manager (BPM) REST API
  by using a JSON object as an input parameter for a data object,
  such as to change variable values, you might get the following
  error:
  
  "CWTBG0029E: The parameter 'params' has an unsupported value".
  
  The error occurs when the JSON object passed in represents a
  complex business object from the system toolkit. The error
  appears in the API Response message and in an FFDC log entry.
  
  The following list refers to all the IBM BPM REST calls that
  might be affected:
  
  Process Resource - Start Method (Start Process)
  http://www.ibm.com/support/knowledgecenter/SSFPJS_7.5.1/com.ibm.
  wbpm.bspace.ref.doc/bpmrest-docs/rest_bpm_wle_v1_process_post_st
  art.htm?cp=SSFPJS_7.5.1&lang=en
  Service Resource - Start Method (Start Service)
  http://www.ibm.com/support/knowledgecenter/SSFPJS_7.5.1/com.ibm.
  wbpm.bspace.ref.doc/bpmrest-docs/rest_bpm_wle_v1_service_instanc
  eid_post_start.htm?cp=SSFPJS_7.5.1&lang=en
  Service Resource - SetData Method (Service SetData)
  http://www.ibm.com/support/knowledgecenter/SSFPJS_7.5.1/com.ibm.
  wbpm.bspace.ref.doc/bpmrest-docs/rest_bpm_wle_v1_service_instanc
  eid_put_setdata.htm?cp=SSFPJS_7.5.1&lang=en
  Task Instance Resource – complete/finish Method (Task
  complete/finish)
  http://www.ibm.com/support/knowledgecenter/SSFPJS_7.5.1/com.ibm.
  wbpm.bspace.ref.doc/bpmrest-docs/rest_bpm_wle_v1_task_taskid_put
  _complete,_finish.htm?cp=SSFPJS_7.5.1&lang=en
  Task Instance Resource - setData Method (Task setData)
  http://www.ibm.com/support/knowledgecenter/SSFPJS_7.5.1/com.ibm.
  wbpm.bspace.ref.doc/bpmrest-docs/rest_bpm_wle_v1_task_taskid_put
  _setdata.htm?cp=SSFPJS_7.5.1&lang=en
  
  The following list refers to the complex business objects from
  the system toolkit that might cause the issue:
  NameValuePair
  ConditionalActivity
  CaseReference
  IndexedMap
  SLAViolationRecord
  SQLDatabaseType
  SQLParameter
  SQLResult
  SQLResultSetColumn
  SQLStatement
  TWHolidaySchedule
  TWTimePeriod
  TWTimeSchedule
  TWWorkSchedule
  
  The same underlying problem addressed by this APAR might cause
  an error in Process Inspector in Process Admin Console as well.
  Trying to change the value of variables, the Process Inspector
  might show an error box in the UI starting with the error
  information: "javax.servlet.ServletException:
  com.ibm.processinspector.rest.ProcessAdminRestException: Error
  changing values".
  

Local fix

Problem summary

• No additional information is available.
  

Problem conclusion

• A fix is available for IBM BPM V7.5.1.2 that fixes the JSON
  computation problem.
  
  On Fix Central (http://www.ibm.com/support/fixcentral), search
  for JR55574:
  
  1. Select IBM Business Process Manager with your edition from
    the product selector, the installed version to the fix pack
    level, and your platform, and then click Continue.
  
  2. Select APAR or SPR, enter JR55574, and click Continue.
  
  When you download fix packages, ensure that you also download
  the readme file for each fix. Review each readme file for
  additional installation instructions and information about the
  fix.
  

Temporary fix

• Not applicable
  

Comments

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

  BPM STANDARD

• Fixed component ID

  5725C9500

Applicable component levels