APAR status
Closed as program error.
Error description
You see this issue intermittently when REST API "/rest/bpm/wle/v1/coachflow/instancedata" fails to claim the task implicitly. You may see the following stack trace in log file. [8/16/21 16:54:48:877 SAST] 00025c92 TaskDAO E com.lombardisoftware.server.ejb.persistence.dao.TaskDAO assignTask Failed to update PO Task.2764194796, query details: updateSql: update LSW_TASK set LAST_MODIFIED_DATETIME = ?, USER_ID = ?, GROUP_ID = ? where TASK_ID = ? and USER_ID = ? and GROUP_ID = ? and LAST_MODIFIED_DATETIME = ? columns: [LAST_MODIFIED_DATETIME, USER_ID, GROUP_ID, TASK_ID, USER_ID, GROUP_ID, LAST_MODIFIED_DATETIME] values: [2021-08-16 16:54:48.834, 409910, -378488, 2764194796, -1, 378488, 2021-08-16 16:54:48.431] com.lombardisoftware.core.ConcurrentModificationException: Failed to update PO Task.2764194796, query details: updateSql: update LSW_TASK set LAST_MODIFIED_DATETIME = ?, USER_ID = ?, GROUP_ID = ? where TASK_ID = ? and USER_ID = ? and GROUP_ID = ? and LAST_MODIFIED_DATETIME = ? columns: [LAST_MODIFIED_DATETIME, USER_ID, GROUP_ID, TASK_ID, USER_ID, GROUP_ID, LAST_MODIFIED_DATETIME] values: [2021-08-16 16:54:48.834, 409910, -378488, 2764194796, -1, 378488, 2021-08-16 16:54:48.431] at com.lombardisoftware.server.ejb.persistence.dao.UnversionedPODAO .doUpdate(UnversionedPODAO.java:1085) at com.lombardisoftware.server.ejb.persistence.dao.TaskDAO.assignTa sk(TaskDAO.java:392) at com.lombardisoftware.server.ejb.api.TaskAPICore.assignTask(TaskA PICore.java:162) ... at com.lombardisoftware.server.ejb.psapi.TaskAPIFacadeCore.assignTa sk(TaskAPIFacadeCore.java:61) ... at com.ibm.bpm.rest.impl.task.TaskResource.claim(TaskResource.java: 1061) ... at com.ibm.bpm.rest.impl.coachflow.InstanceDataResource.getInstance Data(InstanceDataResource.java:199) [8/16/21 16:54:48:962 SAST] 00025731 CFEController E com.ibm.bpm.coachflow.servlet.CFEControllerServlet finishTaskWithException Task.2764194796 / BPDInstance.9396099 / User.409910: Error: The server responded with an error code 500 when accessing the url "/rest/bpm/wle/v1/coachflow/instancedata". Contact your system administrator. [8/16/21 16:57:07:351 SAST] 00026ac3 tokenTrace 1 com.lombardisoftware.bpd.component.flowcomponent.activity.worker .notification.TaskActivityCompletedNotification creating notification TaskActivityCompletionNotification for token: BPDToken(bpdInstanceId=BpmnInstanceId(9396099), tokenId=135, locationId = BPDObjectIdImpl(f9559933-5600-4ce7-82dc-e9a119e33b26)) [8/16/21 16:57:07:384 SAST] 00026ac3 RoutingAPIFac E CWLLG2229E: An exception occurred in an EJB call. Error: Cannot resume the BPD Instance with Id "BPDInstance.9396099". The previous resume completed with errors. com.lombardisoftware.bpd.runtime.engine.quartz.BPDIncorrectExecu tionStatus: Cannot resume the BPD Instance with Id "BPDInstance.9396099". The previous resume completed with errors. at com.lombardisoftware.bpd.runtime.engine.util.BPDEngineUtils.asse rtProperExecutionStatus(BPDEngineUtils.java:1229) at com.lombardisoftware.server.ejb.psapi.RoutingAPIFacadeCore$1.doE xecuteDuringLock(RoutingAPIFacadeCore.java:196) ... at com.lombardisoftware.server.ejb.psapi.RoutingAPIFacadeCore.compl eteTaskAndResumeImmediately(RoutingAPIFacadeCore.java:223) ... PRODUCTS AFFECTED IBM Business Automation Workflow
Local fix
Problem summary
The issue is caused by concurrency race condition, allowing the task to be claimed by the same user via another REST API invocation..
Problem conclusion
A fix is available or will be available that ensures the task moving to Closed status when this task finishes.
Temporary fix
Comments
APAR Information
APAR number
JR64243
Reported component name
BUS AUTO WORKFL
Reported component ID
5737H4100
Reported release
J00
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-10-08
Closed date
2021-11-03
Last modified date
2021-11-03
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
BUS AUTO WORKFL
Fixed component ID
5737H4100
Applicable component levels
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS8JB4","label":"IBM Business Automation Workflow"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"19.0.0.1"}]
Document Information
Modified date:
04 November 2021