Patricia,
 
Note that the service task should contain an operationRef that refers to an operation defined as part of an interface in your process.  The process would probably open fine if you included that element, though I must admit that it should probably be able to handle incomplete process specifications as well (but this is still work in progress, especially since Oryx is still using the old BPMN 2.0 beta1 format).
 
Note that the service task concept in BPMN2 matches with the work item node in Drools Flow.  So while the editor contains 2 predefined service tasks, is it possible to define your own, as explained in the documentation here:
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-flow/html/ch.Domain_Specific_Processes.html
 
Kris
 
----- Original Message -----
From: Patricia Bogoevici
To: Rules Users List
Sent: Tuesday, August 03, 2010 9:47 PM
Subject: [rules-users] Drools BPMN 2.0 service task error for process editedusing Oryx

Hi all,

I am using Drools 5.1 release, and I am testing the BPMN process definition created with Oryx designer. The main problem I ran into is the serviceTask element. I cannot open the  process file created with Oryx designer, in Eclipse, as it complains about this error:

"java.lang.IllegalArgumentException: No interfaces found at org.drools.bpmn2.legacy.beta1.ServiceTaskHandler.handleNode(ServiceTaskHandler.java:35)"

Below is a snippet from the BPMN 2.0 xml file got using Oryx for serviceTask. I also attached the whole xml file, in case that help.

I appreciate a lot if someone can help me with this issue, as I am practically stuck at this point.

On the other hand, I noticed that Drools Eclipse workflow editor allows only for 2 types of service tasks: Email and Log. Is that a limitation of the Eclipse workflow editor, or the serviceTask is not implemented in Drools BPMN 2.0?
Can I use serviceTask BPMN 2.0 element in Drools workflow?


****** serviceTask from Oryx process ******
<serviceTask implementation="webService" completionQuantity="1" startQuantity="1" isForCompensation="false" name="AH Web Service" id="oryx_B84C15D7-ADA6-4956-8C43-3DFD02967BE1"/>


Thanks in advance,
Patricia

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