topic Database Exception in process containing two callActivities with multiInstanceLoopCharacteristics in Alfresco Forum

Database Exception in process containing two callActivities with multiInstanceLoopCharacteristics

frauke_heyl — Fri, 09 Mar 2018 15:46:51 GMT

Hi everybody,I have a serious problem. The process contains two callActivities with a multiInstanceLoopCharacteristics, both working on the same variable as activiti:collection.After executing the first call activity, the collection variable is cleared by some service task. Then the second call acti

Re: Database Exception in process containing two callActivities with multiInstanceLoopCharacteristics

frauke_heyl — Tue, 13 Mar 2018 09:40:43 GMT

Thanks to my colleague Roger we found a workaround for this problem by adding a check

if (nrOfActiveInstances < 0) {
return;
}

to the leave method of ParallelMultiInstanceBehavior

and

if (loopCounter > nrOfInstances && nrOfInstances > 0) {
return;
}

to the leave method SequentialMultiInstanceBehavior.

Maybe not the most elegant thing to do, but it solved our problem.