After creating .wid file in jbpm6 project within Eclipse cannot longer open .bpmn

[sergei_makarov]

Hello,

would like to register my own Task with WorkItemHandler, with simple Start->Task->End, but have always follows error: "Task node 'Task'[2] has no work name" in jbpm6.1.0.Final and Task node 'Task'[2] has no task type" in jbpm6.3.0.Final accordingly. I believe, that registring my own Task through WorkDefinition File can resolve my problem, but as i just add .wid file in META-INF, cannot longer open my .bpmn/.bpmn2 file. Registring .wid file with drools.rules.conf doesn't resolve the problem.

Maybe you know how can i register task type another way. Appreciate your help.

Eclipse: Luna, jbpm6, bpmn-modeller: 1.6

[abhijithumbe]

What exception you are facing while opening BPMN process ? Can you share sample project with us ?

[sergei_makarov]

there is no any error, that't the point, just gray canvas on the place of modeler. There error "no task type" persists.

Have you any idea, how i could  define a Task Type otherwise?

Snippet of .bpmn model

</bpmn2:startEvent>

    <bpmn2:task id="Task_1" name="Task">

      <bpmn2:extensionElements>

        <tns:metaData name="elementname">

          <tns:metaValue><![CDATA[Task]]></tns:metaValue>

        </tns:metaData>

        <tns:onEntry-script scriptFormat="http://www.java.com/java"/>

        <tns:onExit-script scriptFormat="http://www.java.com/java"/>

      </bpmn2:extensionElements>

      <bpmn2:incoming>SequenceFlow_1</bpmn2:incoming>

      <bpmn2:outgoing>SequenceFlow_3</bpmn2:outgoing>

      <bpmn2:ioSpecification id="InputOutputSpecification_2">

        <bpmn2:inputSet id="InputSet_1" name="Input Set 1"/>

        <bpmn2:outputSet id="_OutputSet_2" name="Output Set 2"/>

      </bpmn2:ioSpecification>

    </bpmn2:task>

    <bpmn2:sequenceFlow id="SequenceFlow_1" tns:priority="1" sourceRef="_1" targetRef="Task_1"/>

    <bpmn2:endEvent id="EndEvent_1" name="End Event 1">

      <bpmn2:extensionElements>

        <tns:metaData name="elementname">

          <tns:metaValue><![CDATA[End Event 1]]></tns:metaValue>

        </tns:metaData>

      </bpmn2:extensionElements>

      <bpmn2:incoming>SequenceFlow_3</bpmn2:incoming>

    </bpmn2:endEvent>

jUnitTest.java

import com.sample.ItemHandler;

public class Hello_WorldJUnitTest extends JbpmJUnitTestCase {

    @Test

    public void test() {

        KieSession ksession = createKnowledgeSession("sample.bpmn");

        ksession.getWorkItemManager().registerWorkItemHandler("Task", new ItemHandler());

        ProcessInstance processInstance = ksession.startProcess("com.sample.bpmn.hello");

        // if necessary, complete request for service task ""

        // do your checks here

        // for example, assertProcessInstanceCompleted(processInstance.getId(), ksession);

    }

}

CustomItemHandler.java

public class ItemHandler implements WorkItemHandler {

    Map<String, Object> param = new HashMap<String, Object>();

    WorkItem wi;

    @Override

    public void abortWorkItem(WorkItem arg0, WorkItemManager arg1) {

        System.out.println("Work is aborted");

    }

    @Override

    public void executeWorkItem(WorkItem arg0, WorkItemManager arg1) {

        System.out.println("You are welcome!");

        arg1.completeWorkItem(arg0.getId(), param);

    }

}