Getting error while using webservice connector. Even in test connector it is not working. Please help.

I have given correct binding Id after getting binding error.
i have also changed the content typt to application/soap+xml

java.lang.reflect.InvocationTargetException
org.bonitasoft.engine.bpm.connector.ConnectorExecutionException: USERNAME=install | org.bonitasoft.engine.core.connector.exception.SConnectorException: org.bonitasoft.engine.connector.exception.SConnectorException: java.util.concurrent.ExecutionException: java.lang.ClassCastException: java.lang.String cannot be cast to java.util.List

Request:
soapenv:Envelope xmlns:soapenv=“http://schemas.xmlsoap.org/soap/envelope/” xmlns:web=“http://webservice.my.com
soapenv:Header/
soapenv:Body
web:getType
web:eventDD</web:event>
</web:getType>
</soapenv:Body>
/soapenv:Envelope

Soap Response:
<soapenv:Envelope xmlns:soapenv=“http://schemas.xmlsoap.org/soap/envelope/” xmlns:xsd=“http://www.w3.org/2001/XMLSchema” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”>
soapenv:Body

DDINFO

</soapenv:Body>
</soapenv:Envelope>