10:05 a.m.
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
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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 !
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