Petals SE Flowable

<definitions ...>
  <process id="intermediate-message-catch-event-process" name="My process" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="messageintermediatecatchevent1"></sequenceFlow>
    <intermediateCatchEvent id="messageintermediatecatchevent1" name="MessageCatchEvent">
      <messageEventDefinition messageRef="messageRef"/>
    </intermediateCatchEvent>
    <sequenceFlow id="flow3" sourceRef="messageintermediatecatchevent1" targetRef="endevent1"></sequenceFlow>
    <endEvent id="endevent1" name="End"></endEvent>
  </process>
  <message id="messageRef" name="messageName"/>

<wsdl:operation name="unlock">
         <soap:operation soapAction="http://petals.ow2.org/se-flowable/unit-test/intermediate-message-catch-event/unlock" />
         <bpmn:operation processDefinitionId="intermediate-message-catch-event" action="intermediateMessageCatch" message-event-name="messageName" />
         <bpmn:processInstanceId>/*[local-name()='unlock']/*[local-name()='instance-id']</bpmn:processInstanceId>
         <wsdl:input>
            <soap:body use="literal" />
         </wsdl:input>
         <wsdl:fault name="instanceUnknown">
            <bpmn:fault name="ProcessInstanceNotFoundException">instanceUnknown.xsl</bpmn:fault>
            <soap:fault name="instanceUnknown" use="literal" />
         </wsdl:fault>
      </wsdl:operation>