flow.xml

<flow name="sendToServer">
		<http:inbound-endpoint address="http://localhost:1789/receiveRequest" exchange-pattern="request-response" />
		
		<http:body-to-parameter-map-transformer />
		
		<expression-transformer>
			<return-argument evaluator="map-payload" expression="description" />
		</expression-transformer>
		
		<!-- Add attachment.xml as an attachment to be sent to the WS -->
		<custom-processor class="com.AddAttachmentMessageProcessor" />

		<cxf:jaxws-client serviceClass="com.SampleWebService" operation="processAttachedPayload">
			<cxf:outInterceptors>
				<spring:bean class="org.mule.module.cxf.support.CopyAttachmentOutInterceptor"/>
			</cxf:outInterceptors>
		</cxf:jaxws-client>
		
		<outbound-endpoint address="http://localhost:1234/server" />
	</flow>