topic Re: Exception: ScriptTaskListener doesn't implement interface in Alfresco Archive

Exception: ScriptTaskListener doesn't implement interface

ungawunga — Thu, 11 Apr 2013 15:47:04 GMT

Alfresco 4.2c Community, Activiti workflow…This is the exception I'm getting:Apr 11, 2013 11:15:45 AM org.activiti.engine.impl.interceptor.CommandContext closeSEVERE: Error while closing command contextorg.activiti.engine.ActivitiException: org.alfresco.repo.workflow.activiti.tasklistener.ScriptTask

Re: Exception: ScriptTaskListener doesn't implement interface

ungawunga — Thu, 11 Apr 2013 19:15:07 GMT

Update: On 'Script Task 1' and 'Receive Task 3', there are javascript listeners. They call javascript functions that move our models (subclasses of cm:folder) to a different folder. 'Receive Task 1' and 'Receive Task 2' also have the same javascript listeners, and don't exhibit this problem.

If I remove the javascript listeners from 'Script Task 1' and 'Receive Task 3', I don't get the exception anymore.

Is this a bug in Activit and Alfresco? Seems like it to me. I'm going to see if I can get around this by throwing some bogus pass-through Script Tasks in between them, as I do need my listeners to be called.

I've run into this sort of problems before, where if you have a Receive Task followed by a Script Task, the workflow tasks won't be held in the Receive Task like they should be. They just pass right through, as if they were Script Tasks.

Re: Exception: ScriptTaskListener doesn't implement interface

ungawunga — Tue, 16 Apr 2013 21:22:01 GMT

Ok then…

What is the appropriate method for a listener, in the context of one task, to signal other tasks to move to the next step in their workflow? They're all in separate instances of the same Activiti workflow, but I'm having a hard time getting past the above exception when calling workflowService.Signal( otherTaskPath, null ).