Here is my wsdl For calculator example service :-

<definitions name="CalculatorService" targetNamespace="http://RSPL.com" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://RSPL.com" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<types>
<schema elementFormDefault="qualified" targetNamespace="http://RSPL.com" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:soap11-enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://RSPL.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<complexType name="add">
<sequence>
 <element name="arg0" nillable="true" type="string" />
 </sequence>
 </complexType>
<complexType name="addResponse">
 <sequence />
 </complexType>
 <element name="add" type="tns:add" />
 <element name="addResponse" type="tns:addResponse" />
 </schema>
 </types>
<message name="Calculator_addResponse">
 <part element="tns:addResponse" name="result" />
 </message>
<message name="Calculator_add">
 <part element="tns:add" name="parameters" />
 </message>
<portType name="Calculator">
<operation name="add">
 <input message="tns:Calculator_add" />
 <output message="tns:Calculator_addResponse" />
 </operation>
 </portType>
<binding name="CalculatorBinding" type="tns:Calculator">
 <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
<operation name="add">
 <soap:operation soapAction="" />
<input>
 <soap:body use="literal" />
 </input>
<output>
 <soap:body use="literal" />
 </output>
 </operation>
 </binding>
<service name="CalculatorService">
<port binding="tns:CalculatorBinding" name="CalculatorPort">
 <soap:address location="http://rspl65:8080/CC/CalculatorBean" />
</port>
</service>
</definitions>

public static void main(String args[]) {
 try {

 Client client = new Client();
 service =
 javax.xml.ws.Service.create(new URL("http://rspl65:8080/CC/CalculatorBean?wsdl"),
 new QName("http//RSPL.com" ,"CalculatorService"));
 client.doTest();
 } catch(Exception e) {
 e.printStackTrace();
 }
 }

 public void doTest() {
 try {
 Iterator it = service.getPorts();
 for(;it.hasNext();){
 System.out.println(it.next());
 }
 Calculator port = service.getCalculatorPort();
 System.out.println(port);
 port.add("TEST");
 } catch(Exception e) {
 e.printStackTrace();
 }
 }

{http://RSPL.com}CalculatorPort
com.sun.xml.ws.client.EndpointIFInvocationHandler@1a33d48
javax.xml.bind.JAXBException: arg0 is not a valid property on class com.RSPL.jaxws.Add
 at com.sun.xml.ws.encoding.soap.EncoderDecoder.createJAXBBeanPayload(EncoderDecoder.java:261)
 at com.sun.xml.ws.encoding.soap.EncoderDecoder.createDocLitPayloadValue(EncoderDecoder.java:193)
 at com.sun.xml.ws.encoding.soap.EncoderDecoder.createPayload(EncoderDecoder.java:162)
 at com.sun.xml.ws.encoding.soap.ClientEncoderDecoder.toInternalMessage(ClientEncoderDecoder.java:326)
 at com.sun.xml.ws.encoding.soap.ClientEncoderDecoder.toInternalMessage(ClientEncoderDecoder.java:64)
 at com.sun.xml.ws.encoding.soap.client.SOAPXMLEncoder.toInternalMessage(SOAPXMLEncoder.java:140)
 at com.sun.xml.ws.protocol.soap.client.SOAPMessageDispatcher.doSend(SOAPMessageDispatcher.java:161)
 at com.sun.xml.ws.protocol.soap.client.SOAPMessageDispatcher.send(SOAPMessageDispatcher.java:137)
 at com.sun.xml.ws.encoding.soap.internal.DelegateBase.send(DelegateBase.java:84)
 at com.sun.xml.ws.client.EndpointIFInvocationHandler.implementSEIMethod(EndpointIFInvocationHandler.java:172)
 at com.sun.xml.ws.client.EndpointIFInvocationHandler.invoke(EndpointIFInvocationHandler.java:106)
 at $Proxy14.add(Unknown Source)
 at Client.doTest(Client.java:77)
 at Client.main(Client.java:59)
Caused by: javax.xml.bind.JAXBException: arg0 is not a valid property on class com.RSPL.jaxws.Add
 at com.sun.xml.ws.encoding.EncoderDecoderBase.getRawAccessor(EncoderDecoderBase.java:126)
 at com.sun.xml.ws.encoding.EncoderDecoderBase.setWrapperChildValue(EncoderDecoderBase.java:106)
 at com.sun.xml.ws.encoding.soap.EncoderDecoder.createJAXBBeanPayload(EncoderDecoder.java:256)
 ... 13 more
Caused by: javax.xml.bind.JAXBException: arg0 is not a valid property on class com.RSPL.jaxws.Add
 at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getElementPropertyAccessor(JAXBContextImpl.java:781)
 at com.sun.xml.ws.encoding.EncoderDecoderBase.getRawAccessor(EncoderDecoderBase.java:122)
 ... 15 more