Feki Ahmed [https://community.jboss.org/people/bardelman] created the discussion "jbpm engine is generating 4 tasks instead of just one !!" To view the discussion, visit: https://community.jboss.org/message/786819#786819 -------------------------------------------------------------- Hi, i'm using jbpm 5.0. i ve a simple process with 2 human-tasks for 2 different users, when i try to get each user tasks with this method : public static List <TaskSummary> getAssignedTasks(String idRef) {                     connect();                     List<TaskSummary> tasks = null;                     try {                               BlockingTaskSummaryResponseHandler responseHandler = new BlockingTaskSummaryResponseHandler();                               client.getTasksOwned(idRef, "en-UK", responseHandler);                   tasks = responseHandler.getResults();                     } catch (Throwable t) {                               t.printStackTrace();                     }                     return tasks;           } i got 4 tasks instead of just one : tasks list : [org.jbpm.task.query.TaskSummary@cf54f3e6, org.jbpm.task.query.TaskSummary@cf54f3e7, org.jbpm. task.query.TaskSummary@639962e7, org.jbpm.task.query.TaskSummary@639962e8] Sometimes i get just one task but when i complete it i get 4 tasks with status "completed". 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 : <?xml version="1.0" encoding="UTF-8"?> <definitions id="Definition"              targetNamespace=" http://www.jboss.org/drools http://www.jboss.org/drools"              typeLanguage=" http://www.java.com/javaTypes http://www.java.com/javaTypes"              expressionLanguage=" http://www.mvel.org/2.0 http://www.mvel.org/2.0"              xmlns=" http://www.omg.org/spec/BPMN/20100524/MODEL http://www.omg.org/spec/BPMN/20100524/MODEL"              xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance"              xsi:schemaLocation=" http://www.omg.org/spec/BPMN/20100524/MODEL http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd"              xmlns:g=" http://www.jboss.org/drools/flow/gpd http://www.jboss.org/drools/flow/gpd"              xmlns:bpmndi=" http://www.omg.org/spec/BPMN/20100524/DI http://www.omg.org/spec/BPMN/20100524/DI"              xmlns:dc=" http://www.omg.org/spec/DD/20100524/DC http://www.omg.org/spec/DD/20100524/DC"              xmlns:di=" http://www.omg.org/spec/DD/20100524/DI http://www.omg.org/spec/DD/20100524/DI"              xmlns:tns=" http://www.jboss.org/drools http://www.jboss.org/drools">   <itemDefinition id="_var1Item" structureRef="String" />   <itemDefinition id="_var2Item" structureRef="String" />   <itemDefinition id="_var3Item" structureRef="Object" />   <itemDefinition id="_var4Item" structureRef="String" />   <itemDefinition id="_2-var1Item" structureRef="String" />   <itemDefinition id="_2-var2Item" structureRef="String" />   <itemDefinition id="_2-var3Item" structureRef="Object" />   <itemDefinition id="_2-var4Item" structureRef="String" />   <itemDefinition id="_3-var1Item" structureRef="String" />   <itemDefinition id="_3-var2Item" structureRef="String" />   <itemDefinition id="_3-var3Item" structureRef="Object" />   <itemDefinition id="_3-var4Item" structureRef="String" />   <process processType="Private" isExecutable="true" id="themasterbossexpl" name="Sample Process" tns:packageName="defaultPackage" >     <!-- process variables -->     <property id="var1" itemSubjectRef="_var1Item"/>     <property id="var2" itemSubjectRef="_var2Item"/>     <property id="var3" itemSubjectRef="_var3Item"/>     <property id="var4" itemSubjectRef="_var4Item"/>     <!-- nodes -->     <startEvent id="_1" name="StartProcess" />     <userTask id="_2" name="User Task1" >       <ioSpecification>         <dataInput id="_2_param1Input" name="param1" />         <dataInput id="_2_param2Input" name="param2" />         <dataInput id="_2_TaskNameInput" name="TaskName" />         <inputSet>           <dataInputRefs>_2_param1Input</dataInputRefs>           <dataInputRefs>_2_param2Input</dataInputRefs>           <dataInputRefs>_2_TaskNameInput</dataInputRefs>         </inputSet>         <outputSet>         </outputSet>       </ioSpecification>       <dataInputAssociation>         <sourceRef>var1</sourceRef>         <targetRef>_2_param1Input</targetRef>       </dataInputAssociation>       <dataInputAssociation>         <sourceRef>var2</sourceRef>         <targetRef>_2_param2Input</targetRef>       </dataInputAssociation>       <dataInputAssociation>         <targetRef>_2_TaskNameInput</targetRef>         <assignment>           <from xsi:type="tFormalExpression">usertask1</from>           <to xsi:type="tFormalExpression">_2_TaskNameInput</to>         </assignment>       </dataInputAssociation>       <potentialOwner>         <resourceAssignmentExpression>           <formalExpression>jalel</formalExpression>         </resourceAssignmentExpression>       </potentialOwner>     </userTask>     <userTask id="_3" name="User Task2" >       <ioSpecification>         <dataInput id="_3_param3Input" name="param3" />         <dataInput id="_3_param4Input" name="param4" />         <dataInput id="_3_TaskNameInput" name="TaskName" />         <inputSet>           <dataInputRefs>_3_param3Input</dataInputRefs>           <dataInputRefs>_3_param4Input</dataInputRefs>           <dataInputRefs>_3_TaskNameInput</dataInputRefs>         </inputSet>         <outputSet>         </outputSet>       </ioSpecification>       <dataInputAssociation>         <sourceRef>var3</sourceRef>         <targetRef>_3_param3Input</targetRef>       </dataInputAssociation>       <dataInputAssociation>         <sourceRef>var4</sourceRef>         <targetRef>_3_param4Input</targetRef>       </dataInputAssociation>       <dataInputAssociation>         <targetRef>_3_TaskNameInput</targetRef>         <assignment>           <from xsi:type="tFormalExpression">usertask2</from>           <to xsi:type="tFormalExpression">_3_TaskNameInput</to>         </assignment>       </dataInputAssociation>       <potentialOwner>         <resourceAssignmentExpression>           <formalExpression>karim</formalExpression>         </resourceAssignmentExpression>       </potentialOwner>     </userTask>     <endEvent id="_4" name="End" >         <terminateEventDefinition/>     </endEvent>     <!-- connections -->     <sequenceFlow id="_1-_2" sourceRef="_1" targetRef="_2" />     <sequenceFlow id="_2-_3" sourceRef="_2" targetRef="_3" />     <sequenceFlow id="_3-_4" sourceRef="_3" targetRef="_4" />   </process>   <bpmndi:BPMNDiagram>     <bpmndi:BPMNPlane bpmnElement="themasterbossexpl" >       <bpmndi:BPMNShape bpmnElement="_1" >         <dc:Bounds x="45" y="45" width="48" height="48" />       </bpmndi:BPMNShape>       <bpmndi:BPMNShape bpmnElement="_2" >         <dc:Bounds x="253" y="69" width="100" height="48" />       </bpmndi:BPMNShape>       <bpmndi:BPMNShape bpmnElement="_3" >         <dc:Bounds x="500" y="115" width="100" height="48" />       </bpmndi:BPMNShape>       <bpmndi:BPMNShape bpmnElement="_4" >         <dc:Bounds x="725" y="177" width="48" height="48" />       </bpmndi:BPMNShape>       <bpmndi:BPMNEdge bpmnElement="_1-_2" >         <di:waypoint x="69" y="69" />         <di:waypoint x="303" y="93" />       </bpmndi:BPMNEdge>       <bpmndi:BPMNEdge bpmnElement="_2-_3" >         <di:waypoint x="303" y="93" />         <di:waypoint x="550" y="139" />       </bpmndi:BPMNEdge>       <bpmndi:BPMNEdge bpmnElement="_3-_4" >         <di:waypoint x="550" y="139" />         <di:waypoint x="749" y="201" />       </bpmndi:BPMNEdge>     </bpmndi:BPMNPlane>   </bpmndi:BPMNDiagram> </definitions> Thanx for help ! -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/786819#786819] Start a new discussion in jBPM Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]