JR55060: YOU RECEIVE A CONCURRENT MODIFICATION EXCEPTION

8.5.0.2-WS-BPM-IFJR55060
Version 8.5 Refresh Pack 7 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• In IBM Business Process Manager (BPM), when you invoke a web
  service from an integration service and use input header
  mappings for the SOAP header, the mapped SOAP header is
  sometimes included in the generated SOAP request many times.
  Furthermore, sometimes the input parameters is missing from
  the SOAP request. As a result, you might receive the
  Concurrent Modification exception while invoking a web service:
  
  java.util.ConcurrentModificationException
  at
  java.util.AbstractList$SimpleListIterator.next(AbstractList.java
  :64)
  at
  com.lombardisoftware.component.wsconnector.worker.WSConnectorWor
  ker.doJob(WSConnectorWorker.java:109)
  at
  com.lombardisoftware.component.common.workflow.ExecutionJob.doJo
  b(ExecutionJob.java:431)
  at
  com.lombardisoftware.server.ejb.workflow.EJBWorkflowManagerBean.
  doResumeWorkflowEngine(EJBWorkflowManagerBean.java:1317)
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM BPM Standard                            *
  ****************************************************************
  * PROBLEM DESCRIPTION: In IBM Business Process Manager         *
  *                      (BPM), when you invoke a web service    *
  *                      from an integration service and use     *
  *                      input header mappings for the SOAP      *
  *                      header, the mapped SOAP header is       *
  *                      sometimes included in the generated     *
  *                      SOAP request many times. Furthermore,   *
  *                      sometimes the input parameters is       *
  *                      missing from the SOAP request. As a     *
  *                      result, you might receive the           *
  *                      Concurrent Modification exception       *
  *                      while invoking a web service:           *
  *                      java.util.ConcurrentModificationExcepti *
  *                      on                                      *
  *                      at                                      *
  *                      java.util.AbstractList$SimpleListIterat *
  *                      or.next(AbstractList.java:64)           *
  *                      at                                      *
  *                      com.lombardisoftware.component.wsconnec *
  *                      tor.worker.WSConnectorWorker.doJob(WSCo *
  *                      nnectorWorker.java:109)                 *
  *                      at                                      *
  *                      com.lombardisoftware.component.common.w *
  *                      orkflow.ExecutionJob.doJob(ExecutionJob *
  *                      .java:431)                              *
  *                      at                                      *
  *                      com.lombardisoftware.server.ejb.workflo *
  *                      w.EJBWorkflowManagerBean.doResumeWorkfl *
  *                      owEngine(EJBWorkflowManagerBean.java:13 *
  *                      17)                                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The web service invocation code is not threadsafe when it uses
  input header mappings. In a multithreaded situation, adding
  and removing headers is not properly synchronized, which leads
  to the Concurrent Modification exception.
  

Problem conclusion

• A fix is available for IBM BPM V8.5.0.2 that makes the SOAP
  header mapping-related functions threadsafe, preventing this
  issue from occurring.
  
  On Fix Central (http://www.ibm.com/support/fixcentral), search
  for JR55060:
  
  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 JR55060, 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

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

• R800 PSY

     UP