Java EE (Java Enterprise Edition) General Discussion

Hi all,
I appreciate your time, for reading my post.
I have created webservice (jax-rpc) to get the exchange rates. when i try to execute these codes i am getting the following exception

org.jboss.ws.WSException: Cannot obtain java type mapping for: {http://www.mnb.hu/webservices/}>GetInfo
	at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCMetaDataBuilder.processDocElement(JAXRPCMetaDataBuilder.java:627)
	at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCMetaDataBuilder.buildParameterMetaDataDoc(JAXRPCMetaDataBuilder.java:886)
	at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCMetaDataBuilder.setupOperationsFromWSDL(JAXRPCMetaDataBuilder.java:214)
	at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCClientMetaDataBuilder.buildMetaDataInternal(JAXRPCClientMetaDataBuilder.java:223)
	at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCClientMetaDataBuilder.buildMetaData(JAXRPCClientMetaDataBuilder.java:135)
	at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCClientMetaDataBuilder.buildMetaData(JAXRPCClientMetaDataBuilder.java:87)
	at org.jboss.ws.core.jaxrpc.client.ServiceImpl.<init>(ServiceImpl.java:111)
	at org.jboss.ws.core.jaxrpc.client.ServiceFactoryImpl.createService(ServiceFactoryImpl.java:157)
	at org.jboss.ws.core.jaxrpc.client.ServiceFactoryImpl.createService(ServiceFactoryImpl.java:128)
	at com.acer.ags.webservice.client.jaxrpc.Hung.main(Hung.java:19)

i knew that i am missing something. I would be grateful, if you guys guide me.

here is the webservice code

public static void main(String[] args) {
	try {
	    String UrlString = "http://.........?WSDL";
	    String nameSpaceUri = "target namespace url";
	    String serviceName = "rateService";
	    String portName = "rateServiceSoap";
	    URL wsdlUrl = new URL(UrlString);
	    ServiceFactory sf = ServiceFactory.newInstance();
	    javax.xml.rpc.Service s = sf.createService(wsdlUrl, new QName(nameSpaceUri, serviceName));
	    rateServiceSoapzc = (rateServiceSoap) s.getPort(new QName(nameSpaceUri, rateServiceSoap), rateServiceSoap.class);
	    zc.getExchangeRates("2009-06-01", "2009-06-30", "EUR");
	    
	} catch (ServiceException ex) {
	    ex.printStackTrace();
	    System.out.println(ex.getCause());
	} catch (Exception e) {
	    e.printStackTrace();
	}
    }

the WSDL from the service provider

<wsdl:definitions targetNamespace="target namespace url">
	<wsdl:types>
		<s:schema elementFormDefault="qualified" targetNamespace="target namespace url">
			<s:element name="GetInfo">
				<s:complexType/>
			</s:element>
			
			<s:element name="GetExchangeRates">
				<s:complexType>
				<s:sequence>
					<s:element minOccurs="0" maxOccurs="1" name="startDate" type="s:string"/>
					<s:element minOccurs="0" maxOccurs="1" name="endDate" type="s:string"/>
					<s:element minOccurs="0" maxOccurs="1" name="currencyNames" type="s:string"/>
				</s:sequence>
				</s:complexType>
			</s:element>

			<s:element name="GetExchangeRatesResponse">
				<s:complexType>
				<s:sequence>
					<s:element minOccurs="0" maxOccurs="1" name="GetExchangeRatesResult" type="s:string"/>
				</s:sequence>
				</s:complexType>
			</s:element>
		</s:schema>
	</wsdl:types>

	<wsdl:message name="GetInfoSoapIn">
		<wsdl:part name="parameters" element="tns:GetInfo"/>
	</wsdl:message>

	<wsdl:message name="GetInfoSoapOut">
		<wsdl:part name="parameters" element="tns:GetInfoResponse"/>
	</wsdl:message>

	<wsdl:message name="GetExchangeRatesSoapIn">
		<wsdl:part name="parameters" element="tns:GetExchangeRates"/>
	</wsdl:message>

	<wsdl:message name="GetExchangeRatesSoapOut">
		<wsdl:part name="parameters" element="tns:GetExchangeRatesResponse"/>
	</wsdl:message>

	<wsdl:portType name="rateServiceSoap">
		<wsdl:operation name="GetInfo">
			<wsdl:input message="tns:GetInfoSoapIn"/>
			<wsdl:output message="tns:GetInfoSoapOut"/>
		</wsdl:operation>

		<wsdl:operation name="GetExchangeRates">
			<wsdl:input message="tns:GetExchangeRatesSoapIn"/>
			<wsdl:output message="tns:GetExchangeRatesSoapOut"/>
		</wsdl:operation>
	</wsdl:portType>

	<wsdl:binding name="rateServiceSoap" type="tns:rateServiceSoap">
		<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>

		<wsdl:operation name="GetInfo">
			<soap:operation soapAction="target namespace url/GetInfo" style="document"/>
			<wsdl:input>
				<soap:body use="literal"/>
			</wsdl:input>

			<wsdl:output>
				<soap:body use="literal"/>
			</wsdl:output>
		</wsdl:operation>

		<wsdl:operation name="GetExchangeRates">
		<soap:operation soapAction="target namespace url/GetExchangeRates" style="document"/>
			<wsdl:input>
				<soap:body use="literal"/>
			</wsdl:input>

			<wsdl:output>
				<soap:body use="literal"/>
			</wsdl:output>
		</wsdl:operation>
	</wsdl:binding>

	<wsdl:service name="rateService">
		<documentation> curreny exchange rate webservice.</documentation>
		<wsdl:port name="rateServiceSoap" binding="tns:rateServiceSoap">
			<soap:address location="location url"/>
		</wsdl:port>
	</wsdl:service>
</wsdl:definitions>

Thanks