Service Mediation Using Proxy Services -WSO2 - web-services

Question

I'm new to this area and i need to access my web service via the ESB. as it mentioned in here - Service Mediation Using Proxy Services i tried to to create it. after that i run it and get the response as follows :
<TryitProxyError xmlns:h="http://wso2.org/ns/TryitProxy"
h:status="SOAP envelope error">org.apache.axis2.AxisFault:
The input stream for an incoming message is null.</TryitProxyError>
but i tried to run same web method using SOAPUi and get the expected out put as below:
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<getPatientHistoryResponse xmlns="http://tilani.lk/">
<getPatientHistoryResult>
<NIC>123</NIC>
<FullName>ABC DEF</FullName>
<FirstName>ABC</FirstName>
<Surname>DEF</Surname>
<Title>Mr.</Title>
<Gender>M/Gender>
</getPatientHistoryResult>
</getPatientHistoryResponse>
</soap:Body>
</soap:Envelope>
what is the reason for this? i created this using .net
my WSDL Address - http://localhost:2935/PatientRegService.asmx?WSDL
then in
Define Endpoint as - http://localhost:2935/PatientRegService.asmx
EDIT
my proxy configuration is as follows:
<proxy xmlns="http://ws.apache.org/ns/synapse" name="PatientManagement" transports="https,http" statistics="disable" trace="disable" startOnLoad="true">
<target>
<outSequence>
<send/>
</outSequence>
<endpoint>
<address uri="http://localhost:2935/PatientRegService.asmx?WSDL"/>
</endpoint>
</target>
<publishWSDL uri="http://localhost:2935/PatientRegService.asmx?WSDL"/>
<description></description>
</proxy>

Answer 1

If you just want to access your web service via ESB you need to create a proxy service and access the proxy service URI instead of the original service URI. Just follow the Pass Through Proxy example.

Answer 2

Try the following proxy and see waht you are getting. Add this proxy configuration via source view editor.
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="testProxy"
transports="https http"
startOnLoad="true"
trace="disable">
<description/>
<target>
<inSequence>
<log level="full">
<property name="testprop" value="incoming message"/>
</log>
<send>
<endpoint>
<address uri="http://localhost:2935/PatientRegService.asmx"/>
</endpoint>
</send>
</inSequence>
<outSequence>
<send/>
</outSequence>
</target>
</proxy>