Seda component is not working as expected

Issue

• Is there any way to manage the execution of threads in seda component.
• I want my route to work in a proper order. Kindly find the route code given below and check the comments.
• My "acktogateway" bean is executing first , I am setting exhange body in that bean , then I am calling the seda component at the end of the route. Now I am expecting that the body set in "acktogateway" to be returned first and then the body set in seda route to be returned but I am not able to control the thread execution. I was able to achieve what I want by using the delay component which delays the thread execution but this is not what I want to do. Can you help me with a better solution to this .

<route>
             <from uri="cxf:bean:someServiceWF"/>
             <to pattern="InOnly" uri="seda:WFM_firstcall" />  <!--this is working fine-->
             <process ref="acktogateway"/>   <!--I am setting a body in this. I am expecting this body to be returned to the caller at the end of the route , BEFORE the seda bean's execution is completed but it is not working.-->
             <to pattern="InOnly" uri="seda:gatewayAck" /> <!--Some times seda beans execution is completed first and that body is returned to the caller instead of the body set in "acktogateway" bean called before seda component.-->
    </route>

    <route id="Notification">
            <from uri="seda:gatewayAck" />
            <process ref="spacktogateway" /> <!--this is supposed to run afer completion of acktogateway bean-->
            <to uri="cxf:bean:Gatewaycall" />
        </route>