Fixes are available
APAR status
Closed as program error.
Error description
When querying services via BPM REST API and when trace is enabled this can lead to an ConcurrentModificationException when the underlying execution continues.
Local fix
Disabling trace
Problem summary
When retrieving services via BPM REST API the execution context will retrieved. If the execution context will be updated by the BPD engine while the execution context is used by the BPM REST API this can lead to the exception due to missing synchronization on the execution context. PROBLEM DETAILED DESCRIPTION: When using the BPM REST API to retrieve services this can lead to an ConcurrentModificationException similar to this: java.util.ConcurrentModificationException at java.util.AbstractList$SimpleListIterator.next (AbstractList.java:64) at com.lombardisoftware.component.common.workflow. ExecutionContext.toString(ExecutionContext.java:1053) at java.lang.String.valueOf(String.java:1528) at java.lang.StringBuilder.append(StringBuilder.java:194) at java.util.AbstractMap.toString(AbstractMap.java:618) at java.lang.String.valueOf(String.java:1528) at com.ibm.bpm.rest.impl.service.ServiceRunnerManager. initOldWebWFM(ServiceRunnerManager.java:101) at com.ibm.bpm.rest.impl.service.ServiceRunnerManager. getInstance(ServiceRunnerManager.java:66) at com.ibm.bpm.rest.impl.service.ServiceResource. getServiceActions(ServiceResource.java:105)
Problem conclusion
With this interim fix the synchronization between different threads will be fixed so that access to the exection context by multiple threads is possible. FIX AVAILABILITY: iFix for 7.5.1.1 is available on Fix Central, search for APAR JR47535 at http://www.ibm.com/support/fixcentral/ Fix is also targetted for inclusion in next fixpack for BPM V7.5.1, BPM 8.0.1, BPM 8.5.0 When obtaining any of the above fixes, be sure to download the accompanying readme, for itself, and any prerequisite fixes, and review them thorougly.
Temporary fix
Comments
APAR Information
APAR number
JR47535
Reported component name
BPM ADVANCED
Reported component ID
5725C9400
Reported release
751
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-08-16
Closed date
2013-11-20
Last modified date
2013-11-20
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
R751 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSFTDH","label":"IBM Business Process Manager Standard"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.5.1","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
07 January 2022