Mule - choice component issue - http

Question

When I run my flow, I get the following error `
<org.apache.cxf.staxutils.DepthXMLStreamReader>
<reader class="org.mule.module.cxf.support.StreamClosingInterceptor$1">
<reader class="com.ctc.wstx.sr.ValidatingStreamReader">
<mXml11>false</mXml11>
<mInputBuffer>xmlns:ns2="http://wsdouane/"><return><douanePK><idConteneurId>ctr1</idConteneurId><idCritereId>C11</idCritereId></douanePK><valeurId>oui</valeurId></return></ns2:findResponse></S:Body></S:Envelope>.................
we can see the correct soap response starting from the <mInputBuffer>, is there a way to get only the soap response??
here is my flow
<flow name="SOAPWebService" doc:name="SOAPWebService">
<http:inbound-endpoint exchange-pattern="request-response" address="http://localhost:8088/esb" doc:name="HTTP"/>
<object-to-string-transformer doc:name="Object to String"/>
<choice doc:name="Choice">
<when expression="#[payload.contains('C22')]">
<set-variable variableName="paramCtr" value="#[message.inboundProperties['ctr']]" doc:name="conteneur"/>
<set-variable variableName="paramC" value="#[message.inboundProperties['c']]" doc:name="critere"/>
<component class="com.example.components.SampleComponent" doc:name="Java"/>
<mulexml:xslt-transformer maxIdleTransformers="2" maxActiveTransformers="5" xsl-file="C:\MuleStudio\SandBox\resources\PrepareRequestXMLPort.xsl" doc:name="XSLT">
<mulexml:context-property key="paramCtr" value="#[flowVars['paramCtr']]" />
<mulexml:context-property key="paramC" value="#[flowVars['paramC']]" />
</mulexml:xslt-transformer>
<cxf:proxy-client payload="body" enableMuleSoapHeaders="true" doc:name="SOAP"/>
<http:outbound-endpoint exchange-pattern="request-response" address="http://localhost:8080/ClientsDB/port" doc:name="PortWS"/>
<byte-array-to-string-transformer doc:name="Byte Array to String" />
</when>
<otherwise>
<set-variable variableName="paramCtr" value="#[message.inboundProperties['ctr']]" doc:name="conteneur"/>
<set-variable variableName="paramC" value="#[message.inboundProperties['c']]" doc:name="critere"/>
<component class="com.example.components.SampleComponent" doc:name="Java"/>
<mulexml:xslt-transformer maxIdleTransformers="2" maxActiveTransformers="5" xsl-file="C:\MuleStudio\SandBox\resources\PrepareRequestXMLDouane.xsl" doc:name="XSLT">
<mulexml:context-property key="paramCtr" value="#[flowVars['paramCtr']]" />
<mulexml:context-property key="paramC" value="#[flowVars['paramC']]" />
</mulexml:xslt-transformer>
<cxf:proxy-client payload="body" enableMuleSoapHeaders="true" doc:name="SOAP"/>
<http:outbound-endpoint exchange-pattern="request-response" address="http://localhost:8080/ClientsDB/douane" doc:name="DouaneWS"/>
<byte-array-to-string-transformer doc:name="Byte Array to String"/>
</otherwise>
</choice>
<xm:object-to-xml-transformer doc:name="Object to XML"/>
<file:outbound-endpoint path="C:\MuleStudio\SandBox\output" outputPattern="#[function:datestamp:dd-MM-yy]_#[function:systime].xml " responseTimeout="10000" doc:name="Outgoing File"/>
</flow>
thank you.

Answer 1

This expression #[payload.contains('c22')] can't work because the payload is an InputStream. Aren't you seeing stack traces in Mule's logs?
In any case, try adding <object-to-string-transformer /> before the choice and see if it fixes the issue.
EDIT:
The problem is that you're using XStream (in xm:object-to-xml-transformer) to serialize the CXF response object (org.apache.cxf.staxutils.DepthXMLStreamReader) into XML. The CXF response should not be messed with and should be handled by the cxf:proxy-client in the response phase of the flow. The xm:object-to-xml-transformer and file:outbound-endpoint after the choice router are probably disturbing this mechanism. Try to wrap them in a response element above the choice router to they execute after it in the response phase.
Note that I have already given you this advice in your other question https://stackoverflow.com/a/16615537/387927 but you did not react to it.
Also I don't think byte-array-to-string-transformer does anything: the message payload after the http:outbound-endpoints should be org.apache.cxf.staxutils.DepthXMLStreamReader, preventing this transformer to fire.