Direct links to fixes
APAR status
Closed as program error.
Error description
When parallel flows (such as generalized flows, event handlers, or for-each blocks) run in a BPEL process, different threads might try to access the same Java objects at the same time, causing a ConcurrentModificationException: java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification (ArrayList.java:871) at java.util.ArrayList$Itr.next(ArrayList.java:843) at com.ibm.bpe.database.SharedWorkItemCache.get (SharedWorkItemCache.java:430) at com.ibm.bpe.database. SharedWorkItemManager$SharedWorkItemPatternCache. get(SharedWorkItemManager.java:2173) at com.ibm.bpe.database.SharedWorkItemManager. assignExistingSharedWorkItemID (SharedWorkItemManager.java:866) at com.ibm.bpe.database.SharedWorkItemManager. assignSharedWorkItemID(SharedWorkItemManager.java:774) at com.ibm.bpe.database.SharedWorkItemManager. transform(SharedWorkItemManager.java:731) at com.ibm.bpe.database.SharedWorkItemManager. transform(SharedWorkItemManager.java:699) at com.ibm.bpe.database.SharedWorkItemManager. beforeCompletion(SharedWorkItemManager.java:204) at com.ibm.bpe.database.TomExtended.beforeCompletion (TomExtended.java:1109) at com.ibm.bpe.database.TomExtended.flush(TomExtended. java:1078) at com.ibm.bpe.framework.BusinessProcessServiceImpl. completeTransaction(BusinessProcessServiceImpl.java:39186) at com.ibm.bpe.framework.BusinessProcessServiceImpl. getProcessInstance(BusinessProcessServiceImpl.java:22738) at com.ibm.bpe.framework.BusinessFlowManagerBean. getProcessInstance(BusinessFlowManagerBean.java:14328) As a result, one of the actions rolls back.
Local fix
Problem summary
Because of a thread safety issue, which enables concurrent access to a Java object by several threads, a ConcurrentModificationException is thrown during BPEL processing and the thread that receives the exception rolls back.
Problem conclusion
A fix will be included in IBM BPM V8.5.7 cumulative fix 2016.06 To determine whether the cumulative fix is available and download it if it is, complete the following steps on Fix Central: 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 Text, enter "cumulative fix?, and click Continue.
Temporary fix
Comments
APAR Information
APAR number
JR55844
Reported component name
BPM ADVANCED
Reported component ID
5725C9400
Reported release
857
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-05-02
Closed date
2016-05-25
Last modified date
2016-05-25
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 ADVANCED
Fixed component ID
5725C9400
Applicable component levels
R857 PSY
UP
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFTN5","label":"IBM Business Process Manager Advanced"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"857","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
25 May 2016