"<bpmn:receiveTask id="waitState" name="Waiting for Completion" messageRef="Message_1ovblem">"
"<bpmn:endEvent id="EndEvent_0jyl31p" name="Message End Event">
          <bpmn:incoming>SequenceFlow_0rbzb5k</bpmn:incoming>
         <bpmn:messageEventDefinition messageRef="Message_1ovblem" />
 </bpmn:endEvent>"

They both refer to the below message

<bpmn:message id="Message_1ovblem" name="endProcess" />