topic Re: Observed Issue with Multiple End Events in Alfresco Archive

Observed Issue with Multiple End Events

ryanj1 — Tue, 22 Apr 2014 05:34:36 GMT

I've observed what appears to be an issue with multiple End Events within certain Activiti process model designs (using version 5.15). Since it doesn't appear that I can upload images, I'll try to describe them using text belowtart Event–AND–User Task 1–Script Task 1–End Event 1

Re: Observed Issue with Multiple End Events

frederikherema1 — Tue, 22 Apr 2014 08:17:06 GMT

Ryan,

By the "AND" you mean a parallel gateway, I suppose?

Re: Observed Issue with Multiple End Events

ryanj1 — Tue, 22 Apr 2014 13:39:26 GMT

Yes, that's correct. Too many different BPM tools and too much different terminology, sorry.

Also, in both examples, the first Parallel Gateway (and the only one in the first example) forks into User Task 1 and User Task 2. In the second example, the second Parallel Gateway joins the two threads from Script Task 1 and Script Task 2. I had it nicely spaced so that this was obvious, but the spacing was lost in the translation when I hit Save.

If you have additional questions or if anything isn't clear, please let me know.

-Ryan

Re: Observed Issue with Multiple End Events

jbarrez — Thu, 24 Apr 2014 07:20:30 GMT

It's clear. And multiple end events are supported, this should just work. If not, it is a bug that needs fixing.

Could you upload your xml that demonstrates this issue, so we can exactly reproduce it?

Re: Observed Issue with Multiple End Events

ryanj1 — Tue, 29 Apr 2014 15:38:47 GMT

Joram/All,

I'm going to upload four BPMN files (with ".txt" appended to appease the site 😞

1) ForkedProcess_OneEndEvent: This process leverages a Parallel Gateway as a join and ends as expected.
2) ForkedProcess_TwoEndEvents: This process leverages two separate End Events and ends as expected.
3) Cancel_Tasks_ByScript: This process leverages a Parallel Gateway as a join and ends as expected.
4) Cancel_Tasks_ByScript2EE: This process leverages two separate End Events but does not end as expected, despite the flow indicating that both End Events have been reached.

The fact that the behaviors of #2 and #4 are different seems to suggest that this is a bit of a corner case. Note that I have a similar pair of examples to #'s 3 and 4 that leverage a JavaDelegate to cancel the tasks vs Groovy scripts, so it doesn't appear to have anything to do with the use of a Groovy script.

I'm using Activiti 5.15.

If you have additional questions, please let me know.

-Ryan

Re: Observed Issue with Multiple End Events

trademak — Wed, 07 May 2014 07:23:58 GMT

Hi Ryan,

Excuse us for the delay in answering. I've tested the Cancel_Tasks_ByScript2EE.bpmn process definition and it ends just fine in my test. Could you share how you are testing this process definition?

Best regards,

Re: Observed Issue with Multiple End Events

ryanj1 — Fri, 16 May 2014 22:16:13 GMT

Tijs,

I'm running it within Activiti Explorer in Activiti 5.15. No errors occur within the process instance, but the Script Task entitled "Cancel Order Task" never ends despite the process instance image showing that both End Events have been reached… The process instance remains in my "My instances" list within Activiti Explorer, and the execution remains in the ACT_RU_EXECUTION table.

You aren't seeing that same behavior?

-Ryan

Re: Observed Issue with Multiple End Events

trademak — Mon, 19 May 2014 20:30:58 GMT

Ryan,

I didn't test in the Activiti Explorer, but in a unit test. And it works fine there. But I'll give it a try in the Activiti Explorer to see if I can reproduce the issue there.

Best regards,