[Axis2] Message Receiver Not Found for "in-only" Operation

[Ted Jones]

I am upgrading to Axis2 1.2 from 1.1.1. I have a service with 6
operations (2 in-only and 4 in-out). After converting from Axis2 1.1.1
to 1.2, I receive the following error
for the two in-only operations:
 
org.apache.axis2.AxisFault: Message Receiver not found for
AxisOperation: inOnlyOperation
 
The in-out operations work fine. Here are the message receivers defined
in the service.xml:
 
    <messageReceivers>
          <messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-out";
 
class="org.apache.axis2.rpc.receivers.RPCMessageReceiver"/>
          <messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-only";
 
class="org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver"/>     
    </messageReceivers>
 
Any insight would be greatly appreciated.
 
Thanks,
Ted