Server was unable to read request

Hi all,

i am getting following SOAP Fault error...

 Fault Code = soap:Client
 Fault String = Server was unable to read request. --> There is an error in XML
document (6, 3). --> The element 'urn:schemas-nil:dal:webservices:messag
eschemas/authorisation_input:Input_Message' cannot contain text. Expected
 'urn:schemas-nil:dal:webservices:messageschemas/operational:Operational
'. An error occurred at , (1, 106).

Thsi is my code of java soap client..

		String TEST_XML = "<Input_Message xmlns=\"urn:schemas-nil:dal:webservices:messageschemas\"><Operational><Application_Identification><AppId>A2G</AppId></Application_Identification></Operational><Data><Amount>123567.12</Amount></Data></Input_Message>";

		URL url = new URL ("http://192.168.1.7/PayAuth2/Authorisation_Stub.asmx");


		SOAPMappingRegistry smr = new SOAPMappingRegistry ();
		StringDeserializer sd = new StringDeserializer ();
		smr.mapTypes(Constants.NS_URI_SOAP_ENC,new QName ("","AuthoriseResult"),null, null, sd);
		Call call = new Call ();
		call.setSOAPTransport(st);
		call.setSOAPMappingRegistry (smr);
		call.setTargetObjectURI ("urn:schemas-nil:dal:webservices/authorisation");
		call.setMethodName("Authorise");
		call.setEncodingStyleURI (Constants.NS_URI_SOAP_ENC);
		call.getSOAPContext().setDocLitSerialization(true);
		Vector params = new Vector();
		params.addElement(new Parameter("request",java.lang.String.class, TEST_XML, Constants.NS_URI_SOAP_ENC));
		call.setParams(params);

		Response resp = null;
		try {
		   resp = call.invoke (url, "urn:schemas-nil:dal:webservices/authorisation/Authorise");
		}
		catch (SOAPException e) {
			System.err.println("Caught SOAPException (" + e.getFaultCode () + "): " + e.getMessage ());
			return;
		}


my WSDL file looks like this....

- <s:element name="AuthorisePayment">
- <s:complexType>
- <s:sequence>
- <s:element minOccurs="0" maxOccurs="1" name="request">
- <s:complexType>
- <s:sequence>
  <s:any namespace="urn:schemas-nil:dal:webservices:messageschemas/authorisation_input" /> 
  </s:sequence>
  </s:complexType>
  </s:element>
  </s:sequence>
  </s:complexType>
  </s:element>

  is becuase i am sendig java.lang.String.class but its expecting <s:complexType>. can tell me the solution for this...