topic Getting 'Task not found' for task I have just queried in Alfresco Archive

Getting 'Task not found' for task I have just queried

danielbreitner — Thu, 25 Oct 2012 08:03:23 GMT

Hello everyone,I have encountered a strange error tonight.We are retrieving UserTasks with a task query and then we call "complete" on each of them.Tonight, we retrieved a task that we wanted to complete, and it threw the following exception rg.activiti.engine.ActivitiException: Cannot find task w

Re: Getting 'Task not found' for task I have just queried

frederikherema1 — Thu, 25 Oct 2012 08:26:07 GMT

Are there any boundary-timer events defined on the tasks? Are you using the same process-engine (and TaskService) for the query and for the complete?

Re: Getting 'Task not found' for task I have just queried

danielbreitner — Thu, 25 Oct 2012 09:56:33 GMT

Hi,

no - everything is the same, BUT :

I found out that this error relates to "deleted tasks":

1) Task is deleted

2) Task (even though it is deleted) is returned by the query (Caching ??)

3) completing the task fails.

I am sorry that I didn´t mention, that those task have been deleted, but I just got that Info 10 minutes before. The only question I now still have is: Is this a caching issue ?

Re: Getting 'Task not found' for task I have just queried

frederikherema1 — Thu, 25 Oct 2012 11:33:09 GMT

Activiti only caches on a per-API-call basis. So between 2 api-calls, nothing is cached. When were the tasks deleted? Before the query?

Re: Getting 'Task not found' for task I have just queried

danielbreitner — Fri, 26 Oct 2012 14:35:26 GMT

Hi,

the task was deleted before the query.

The same error occurs when a process flow from one UserTask to another arrives at the second UserTask.
The first UserTask (that doesn´t exist anymore) still comes back when a TaskQuery is used (and provokes the same exception) while the second, newly created UerTask doesn´t come back.

Re: Getting 'Task not found' for task I have just queried

ronald_van_kuij — Sat, 27 Oct 2012 08:06:54 GMT

the task was deleted before the query.

But was it comitted?

Re: Getting 'Task not found' for task I have just queried

jbarrez — Mon, 29 Oct 2012 13:21:02 GMT

I'm having a hard time believing that, it would mean all foundation on which Activiti is built is not happening…
Could you create a unit test demonstrating that problem?