As of this error where I couldn't find a solution, I am trying to run call manually not using Magento plugin.
EDIT
Tried something like this:
<flow name="restorderSub_Flow">
<http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8080" path="test" doc:name="HTTP"/>
<logger message="#[payload]" level="INFO" doc:name="Logger"/>
<parse-template location="src/main/resources/login.xml" doc:name="Parse Template"/>
<logger message="#[payload]" level="INFO" doc:name="Logger"/>
<http:outbound-endpoint address="http://127.0.0.1:8000/api/v2_soap/?wsdl" method="POST" exchange-pattern="request-response" doc:name="HTTP"/>
</flow>
But it's just displaying the magneto endpoint in this case it;s the wsdl file??