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jbpm engine is generating 4 tasks instead of just one !!
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created by <a href="https://community.jboss.org/people/bardelman">Feki Ahmed</a> in <i>jBPM Development</i> - <a href="https://community.jboss.org/message/786819#786819">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p>i'm using jbpm 5.0.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>i ve a simple process with 2 human-tasks for 2 different users, when i try to get each user tasks with this method : </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public static List <TaskSummary> getAssignedTasks(String idRef) {</p><p>                    connect();</p><p>                    List<TaskSummary> tasks = null;</p><p>                    try {</p><p>                              BlockingTaskSummaryResponseHandler responseHandler = new BlockingTaskSummaryResponseHandler();</p><p>                              client.getTasksOwned(idRef, "en-UK", responseHandler);</p><p>                  tasks = responseHandler.getResults();</p><p>                    } catch (Throwable t) {</p><p>                              t.printStackTrace();</p><p>                    }</p><p>                    return tasks;</p><p>          }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>i got 4 tasks instead of just one :</p><p>tasks list : [org.jbpm.task.query.TaskSummary@cf54f3e6, org.jbpm.task.query.TaskSummary@cf54f3e7, org.jbpm.</p><p>task.query.TaskSummary@639962e7, org.jbpm.task.query.TaskSummary@639962e8]</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Sometimes i get just one task but when i complete it i get 4 tasks with status "completed".</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This seems as a bug in the jbpm engine but it doesn't happen with all processes ,i ve 2 processes and this problem only happens in one of them : this one : </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><?xml version="1.0" encoding="UTF-8"?> </p><p><definitions id="Definition"</p><p><span>             targetNamespace="</span><a class="jive-link-external-small" href="http://www.jboss.org/drools" target="_blank">http://www.jboss.org/drools</a><span>"</span></p><p><span>             typeLanguage="</span><a class="jive-link-external-small" href="http://www.java.com/javaTypes" target="_blank">http://www.java.com/javaTypes</a><span>"</span></p><p><span>             expressionLanguage="</span><a class="jive-link-external-small" href="http://www.mvel.org/2.0" target="_blank">http://www.mvel.org/2.0</a><span>"</span></p><p><span>             xmlns="</span><a class="jive-link-external-small" href="http://www.omg.org/spec/BPMN/20100524/MODEL" target="_blank">http://www.omg.org/spec/BPMN/20100524/MODEL</a><span>"</span></p><p><span>             xmlns:xsi="</span><a class="jive-link-external-small" href="http://www.w3.org/2001/XMLSchema-instance" target="_blank">http://www.w3.org/2001/XMLSchema-instance</a><span>"</span></p><p><span>             xsi:schemaLocation="</span><a class="jive-link-external-small" href="http://www.omg.org/spec/BPMN/20100524/MODEL" target="_blank">http://www.omg.org/spec/BPMN/20100524/MODEL</a><span> BPMN20.xsd"</span></p><p><span>             xmlns:g="</span><a class="jive-link-external-small" href="http://www.jboss.org/drools/flow/gpd" target="_blank">http://www.jboss.org/drools/flow/gpd</a><span>"</span></p><p><span>             xmlns:bpmndi="</span><a class="jive-link-external-small" href="http://www.omg.org/spec/BPMN/20100524/DI" target="_blank">http://www.omg.org/spec/BPMN/20100524/DI</a><span>"</span></p><p><span>             xmlns:dc="</span><a class="jive-link-external-small" href="http://www.omg.org/spec/DD/20100524/DC" target="_blank">http://www.omg.org/spec/DD/20100524/DC</a><span>"</span></p><p><span>             xmlns:di="</span><a class="jive-link-external-small" href="http://www.omg.org/spec/DD/20100524/DI" target="_blank">http://www.omg.org/spec/DD/20100524/DI</a><span>"</span></p><p><span>             xmlns:tns="</span><a class="jive-link-external-small" href="http://www.jboss.org/drools" target="_blank">http://www.jboss.org/drools</a><span>"></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  <itemDefinition id="_var1Item" structureRef="String" /></p><p>  <itemDefinition id="_var2Item" structureRef="String" /></p><p>  <itemDefinition id="_var3Item" structureRef="Object" /></p><p>  <itemDefinition id="_var4Item" structureRef="String" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  <itemDefinition id="_2-var1Item" structureRef="String" /></p><p>  <itemDefinition id="_2-var2Item" structureRef="String" /></p><p>  <itemDefinition id="_2-var3Item" structureRef="Object" /></p><p>  <itemDefinition id="_2-var4Item" structureRef="String" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  <itemDefinition id="_3-var1Item" structureRef="String" /></p><p>  <itemDefinition id="_3-var2Item" structureRef="String" /></p><p>  <itemDefinition id="_3-var3Item" structureRef="Object" /></p><p>  <itemDefinition id="_3-var4Item" structureRef="String" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  <process processType="Private" isExecutable="true" id="themasterbossexpl" name="Sample Process" tns:packageName="defaultPackage" ></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    <!-- process variables --></p><p>    <property id="var1" itemSubjectRef="_var1Item"/></p><p>    <property id="var2" itemSubjectRef="_var2Item"/></p><p>    <property id="var3" itemSubjectRef="_var3Item"/></p><p>    <property id="var4" itemSubjectRef="_var4Item"/></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    <!-- nodes --></p><p>    <startEvent id="_1" name="StartProcess" /></p><p>    <userTask id="_2" name="User Task1" ></p><p>      <ioSpecification></p><p>        <dataInput id="_2_param1Input" name="param1" /></p><p>        <dataInput id="_2_param2Input" name="param2" /></p><p>        <dataInput id="_2_TaskNameInput" name="TaskName" /></p><p>        <inputSet></p><p>          <dataInputRefs>_2_param1Input</dataInputRefs></p><p>          <dataInputRefs>_2_param2Input</dataInputRefs></p><p>          <dataInputRefs>_2_TaskNameInput</dataInputRefs></p><p>        </inputSet></p><p>        <outputSet></p><p>        </outputSet></p><p>      </ioSpecification></p><p>      <dataInputAssociation></p><p>        <sourceRef>var1</sourceRef></p><p>        <targetRef>_2_param1Input</targetRef></p><p>      </dataInputAssociation></p><p>      <dataInputAssociation></p><p>        <sourceRef>var2</sourceRef></p><p>        <targetRef>_2_param2Input</targetRef></p><p>      </dataInputAssociation></p><p>      <dataInputAssociation></p><p>        <targetRef>_2_TaskNameInput</targetRef></p><p>        <assignment></p><p>          <from xsi:type="tFormalExpression">usertask1</from></p><p>          <to xsi:type="tFormalExpression">_2_TaskNameInput</to></p><p>        </assignment></p><p>      </dataInputAssociation></p><p>      <potentialOwner></p><p>        <resourceAssignmentExpression></p><p>          <formalExpression>jalel</formalExpression></p><p>        </resourceAssignmentExpression></p><p>      </potentialOwner></p><p>    </userTask></p><p>    <userTask id="_3" name="User Task2" ></p><p>      <ioSpecification></p><p>        <dataInput id="_3_param3Input" name="param3" /></p><p>        <dataInput id="_3_param4Input" name="param4" /></p><p>        <dataInput id="_3_TaskNameInput" name="TaskName" /></p><p>        <inputSet></p><p>          <dataInputRefs>_3_param3Input</dataInputRefs></p><p>          <dataInputRefs>_3_param4Input</dataInputRefs></p><p>          <dataInputRefs>_3_TaskNameInput</dataInputRefs></p><p>        </inputSet></p><p>        <outputSet></p><p>        </outputSet></p><p>      </ioSpecification></p><p>      <dataInputAssociation></p><p>        <sourceRef>var3</sourceRef></p><p>        <targetRef>_3_param3Input</targetRef></p><p>      </dataInputAssociation></p><p>      <dataInputAssociation></p><p>        <sourceRef>var4</sourceRef></p><p>        <targetRef>_3_param4Input</targetRef></p><p>      </dataInputAssociation></p><p>      <dataInputAssociation></p><p>        <targetRef>_3_TaskNameInput</targetRef></p><p>        <assignment></p><p>          <from xsi:type="tFormalExpression">usertask2</from></p><p>          <to xsi:type="tFormalExpression">_3_TaskNameInput</to></p><p>        </assignment></p><p>      </dataInputAssociation></p><p>      <potentialOwner></p><p>        <resourceAssignmentExpression></p><p>          <formalExpression>karim</formalExpression></p><p>        </resourceAssignmentExpression></p><p>      </potentialOwner></p><p>    </userTask></p><p>    <endEvent id="_4" name="End" ></p><p>        <terminateEventDefinition/></p><p>    </endEvent></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    <!-- connections --></p><p>    <sequenceFlow id="_1-_2" sourceRef="_1" targetRef="_2" /></p><p>    <sequenceFlow id="_2-_3" sourceRef="_2" targetRef="_3" /></p><p>    <sequenceFlow id="_3-_4" sourceRef="_3" targetRef="_4" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  </process></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  <bpmndi:BPMNDiagram></p><p>    <bpmndi:BPMNPlane bpmnElement="themasterbossexpl" ></p><p>      <bpmndi:BPMNShape bpmnElement="_1" ></p><p>        <dc:Bounds x="45" y="45" width="48" height="48" /></p><p>      </bpmndi:BPMNShape></p><p>      <bpmndi:BPMNShape bpmnElement="_2" ></p><p>        <dc:Bounds x="253" y="69" width="100" height="48" /></p><p>      </bpmndi:BPMNShape></p><p>      <bpmndi:BPMNShape bpmnElement="_3" ></p><p>        <dc:Bounds x="500" y="115" width="100" height="48" /></p><p>      </bpmndi:BPMNShape></p><p>      <bpmndi:BPMNShape bpmnElement="_4" ></p><p>        <dc:Bounds x="725" y="177" width="48" height="48" /></p><p>      </bpmndi:BPMNShape></p><p>      <bpmndi:BPMNEdge bpmnElement="_1-_2" ></p><p>        <di:waypoint x="69" y="69" /></p><p>        <di:waypoint x="303" y="93" /></p><p>      </bpmndi:BPMNEdge></p><p>      <bpmndi:BPMNEdge bpmnElement="_2-_3" ></p><p>        <di:waypoint x="303" y="93" /></p><p>        <di:waypoint x="550" y="139" /></p><p>      </bpmndi:BPMNEdge></p><p>      <bpmndi:BPMNEdge bpmnElement="_3-_4" ></p><p>        <di:waypoint x="550" y="139" /></p><p>        <di:waypoint x="749" y="201" /></p><p>      </bpmndi:BPMNEdge></p><p>    </bpmndi:BPMNPlane></p><p>  </bpmndi:BPMNDiagram></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p></definitions></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanx for help !</p></div>
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