topic can not start process instance without any exceptions in Alfresco Archive

can not start process instance without any exceptions

wenweikun — Tue, 25 Jun 2013 03:05:50 GMT

Hi~I have a bean that use for starting my process instance with the process variable, I use activiti 5.12 and activiti-cdi.the code is quite sample: public void startProcess(PurchaseOrder po) { System.out.println("————-Process begin————"); businessProcess.setVariable("po", po); Syst

Re: can not start process instance without any exceptions

frederikherema1 — Tue, 25 Jun 2013 09:03:58 GMT

Is the logging configured correcltly? maybe the error is swallowed. Have you tried debugging the java-code, up to the point where the process is actually started?

Re: can not start process instance without any exceptions

wenweikun — Tue, 25 Jun 2013 09:41:28 GMT

Thank you for the reply, the logging config should be no problem since the other activiti exceptions show out correctly. I have debug the java code, I set the break point at businessProcess.startProcessByKey("poManagementProcess"); and System.out.println("————-Process started————"); I press F5 all the way down, but it seems no problem for me.(I have no knowledge at Activiti source code )
now my solution is create a service task and use java mail for my mail sending task. It works fine now.

BTW, the sample process is :
<java>
<process id="myProcess" name="My process" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <userTask id="usertask1" name="User Task"></userTask>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
    <userTask id="usertask2" name="User Task"></userTask>
    <sequenceFlow id="flow2" sourceRef="usertask1" targetRef="usertask2"></sequenceFlow>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow3" sourceRef="usertask2" targetRef="endevent1"></sequenceFlow>
</process>
</java>

and the following process did not work:
<java>
<process id="myProcess" name="My process" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <serviceTask id="mailtask1" name="Mail Task" activiti:type="mail"></serviceTask>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="mailtask1"></sequenceFlow>
    <userTask id="usertask1" name="User Task"></userTask>
    <sequenceFlow id="flow2" sourceRef="mailtask1" targetRef="usertask1"></sequenceFlow>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow3" sourceRef="usertask1" targetRef="endevent1"></sequenceFlow>
</process>
</java>

Re: can not start process instance without any exceptions

trademak — Tue, 25 Jun 2013 15:45:24 GMT

That's because the mail task doesn't contain any elements like to recipient, subject etc. So this can't work. Or did you not include all the details?

Best regards,

Re: can not start process instance without any exceptions

wenweikun — Wed, 26 Jun 2013 08:38:58 GMT

I did contain the necessary elements of email task, actually the engine works well at another sample project using the same process.
The difference of current project is I call the startProcess method at a asynchronous method of a stateless bean, I use this bean to listen to the change of a folder, once there is new xml file come in, then start a new process. I dont know if it is the source of the problem.

Re: can not start process instance without any exceptions

jbarrez — Thu, 27 Jun 2013 11:51:07 GMT

That shouldn't be a problem.

Can you reproduce it in a unit test? That's the easiest and quickest way for us to verify and fix it.