gao haijun [https://community.jboss.org/people/vavi] created the discussion "why jbpm5.3 usertask support only one incoming connection?" To view the discussion, visit: https://community.jboss.org/message/741623#741623 -------------------------------------------------------------- I have a process, contains approve and reject. if reject,the process should return to usertask1. if I write the process definition file using hand(without the eclipse plugin),it will throw a exception: *ProcessLoadError: unable to parse xml : Exception class java.lang.IllegalArgumentException : This type of node cannot have more than one incoming connection!* imo, what I said should be a *common request/case*. so why jbpm5.3 usertask  support only one incoming connection? Hope someone can answer my question,thx a lot. PS:the process difinition details:   <itemDefinition id="_conditionWhoItem" structureRef="Object" />   <itemDefinition id="_2-conditionWhoItem" structureRef="Object" />   <itemDefinition id="_4-conditionWhoItem" structureRef="Object" />   <itemDefinition id="_5-conditionWhoItem" structureRef="Object" />   <process processType="Private" isExecutable="true" id="com.sample.bpmn" name="Sample Process" tns:packageName="defaultPackage" >     <!-- process variables -->     <property id="conditionWho" itemSubjectRef="_conditionWhoItem"/>     <!-- nodes -->     <startEvent id="_1" name="StartProcess" />     <userTask id="_2" name="1" >       <ioSpecification>         <inputSet>         </inputSet>         <outputSet>         </outputSet>       </ioSpecification>       <potentialOwner>         <resourceAssignmentExpression>           <formalExpression>FME</formalExpression>         </resourceAssignmentExpression>       </potentialOwner>     </userTask>     <exclusiveGateway id="_3" name="Gateway" gatewayDirection="Diverging" />     <userTask id="_4" name="3" >       <ioSpecification>         <inputSet>         </inputSet>         <outputSet>         </outputSet>       </ioSpecification>       <potentialOwner>         <resourceAssignmentExpression>           <formalExpression>SLE2</formalExpression>         </resourceAssignmentExpression>       </potentialOwner>     </userTask>     <userTask id="_5" name="2" >       <ioSpecification>         <inputSet>         </inputSet>         <outputSet>         </outputSet>       </ioSpecification>       <potentialOwner>         <resourceAssignmentExpression>           <formalExpression>SLE1</formalExpression>         </resourceAssignmentExpression>       </potentialOwner>     </userTask>     <endEvent id="_6" name="End" >         <terminateEventDefinition/>     </endEvent>     <!-- connections -->     <sequenceFlow id="_5-_2" sourceRef="_5" targetRef="_2" />     <sequenceFlow id="_1-_2" sourceRef="_1" targetRef="_2" />     <sequenceFlow id="_2-_3" sourceRef="_2" targetRef="_3" />     <sequenceFlow id="_3-_4" sourceRef="_3" targetRef="_4" name="SLE2" >       <conditionExpression xsi:type="tFormalExpression" >return conditionWho == "SLE2";</conditionExpression>     </sequenceFlow>     <sequenceFlow id="_3-_5" sourceRef="_3" targetRef="_5" name="SLE1" >       <conditionExpression xsi:type="tFormalExpression" >return conditionWho == "SLE1";</conditionExpression>     </sequenceFlow>     <sequenceFlow id="_4-_6" sourceRef="_4" targetRef="_6" />   </process> -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/741623#741623] Start a new discussion in jBPM Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]