===============================================================================
Extension Type                                                   (abbrieviated)
===============================================================================

public class Extension
{
  public int getRow() 
  public void setRow(int row) 
  public java.lang.String getId() 
  public void setId(java.lang.String id) 
  public java.lang.String getVersion() 
  public void setVersion(java.lang.String version) 
  public java.lang.String getName() 
  public void setName(java.lang.String name) 
  public java.lang.String getXpiURL() 
  public void setXpiURL(java.lang.String xpiURL) 
}

===============================================================================
Client JavaScript:                                               (abbrieviated)
===============================================================================
var e = {
          id        : "{bb8ee064-ccb9-47fc-94ae-ec335af3fe2d}", 
          version   : "3.0",
          name      : "", ro
          w         : -1, 
          xpiURL    : ""
        };
var extensions = [e];
(create proxy, call "getExtensionsToUpdate" method):

proxy.getExtensionsToUpdate(extensions, 
                            "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}",
                            "0.8.0+");

===============================================================================
In the Console:
===============================================================================

Asynchronous Request:

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" 
              xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" 
              env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" 
              xmlns:xs="http://www.w3.org/1999/XMLSchema" 
              xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance">
  <env:Header/>
  <env:Body>
    <a0:getExtensionsToUpdate xmlns:a0="urn:VersionCheck">
      <ns1:in0 xmlns:ns1="urn:VersionCheck" 
               xsi:type="ns1:ArrayOfExtension" 
               enc:arrayType="xs:anyType[1]">
        <enc:Struct>
          <id xsi:type="xs:string">
            {bb8ee064-ccb9-47fc-94ae-ec335af3fe2d}
          </id>
          <version xsi:type="xs:string">3.0</version>
          <name xsi:type="xs:string"/>
          <row xsi:type="xs:int">-1</row>
          <xpiURL xsi:type="xs:string"/>
        </enc:Struct>
      </ns1:in0>
      <a0:in1 xsi:type="xs:string">
        {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
      </a0:in1>
      <a0:in2 xsi:type="xs:string">0.8.0+</a0:in2>
    </a0:getExtensionsToUpdate>
  </env:Body>
</env:Envelope>

Asynchronous Response:
<?xml version="1.0" encoding="UTF-8"?>
<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>
    <soapenv:Fault>
      <faultcode>soapenv:Server.userException</faultcode>
      <faultstring>
        org.xml.sax.SAXException: No deserializer for {http://www.w3.org/1999/XMLSchema}anyType
      </faultstring>
      <detail/>
    </soapenv:Fault>
  </soapenv:Body>
</soapenv:Envelope>

===============================================================================
VersionCheck.wsdl:                                          (generated by Axis)
===============================================================================

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions targetNamespace="urn:VersionCheck" 
                  xmlns="http://schemas.xmlsoap.org/wsdl/" 
                  xmlns:apachesoap="http://xml.apache.org/xml-soap" 
                  xmlns:impl="urn:VersionCheck" 
                  xmlns:intf="urn:VersionCheck" 
                  xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" 
                  xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" 
                  xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/" 
                  xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  
  <wsdl:types>
    <schema targetNamespace="urn:VersionCheck" 
            xmlns="http://www.w3.org/2001/XMLSchema">
      <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
      <complexType name="Extension">
        <sequence>
          <element name="id" nillable="true" type="xsd:string"/>
          <element name="name" nillable="true" type="xsd:string"/>
          <element name="row" type="xsd:int"/>
          <element name="version" nillable="true" type="xsd:string"/>
          <element name="xpiURL" nillable="true" type="xsd:string"/>
        </sequence>
      </complexType>
      <complexType name="ArrayOfExtension">
        <complexContent>
          <restriction base="soapenc:Array">
            <attribute ref="soapenc:arrayType" wsdl:arrayType="impl:Extension[]"/>
          </restriction>
        </complexContent>
      </complexType>
    </schema>
  </wsdl:types>

  <wsdl:message name="getExtensionsToUpdateRequest">
    <wsdl:part name="in0" type="impl:ArrayOfExtension"/>
    <wsdl:part name="in1" type="xsd:string"/>
    <wsdl:part name="in2" type="xsd:string"/>
  </wsdl:message>
  <wsdl:message name="getExtensionsToUpdateResponse">
    <wsdl:part name="getExtensionsToUpdateReturn" type="impl:ArrayOfExtension"/>
  </wsdl:message>
  <wsdl:portType name="VersionCheck">
    <wsdl:operation name="getExtensionsToUpdate" parameterOrder="in0 in1 in2">
      <wsdl:input message="impl:getExtensionsToUpdateRequest" name="getExtensionsToUpdateRequest"/>
      <wsdl:output message="impl:getExtensionsToUpdateResponse" name="getExtensionsToUpdateResponse"/>
    </wsdl:operation>
  </wsdl:portType>
  <wsdl:binding name="VersionCheckSoapBinding" type="impl:VersionCheck">
    <wsdlsoap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
    <wsdl:operation name="getExtensionsToUpdate">
      <wsdlsoap:operation soapAction=""/>
      <wsdl:input name="getExtensionsToUpdateRequest">
        <wsdlsoap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:VersionCheck" use="encoded"/>
      </wsdl:input>
      <wsdl:output name="getExtensionsToUpdateResponse">
        <wsdlsoap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:VersionCheck" use="encoded"/>
      </wsdl:output>
    </wsdl:operation>
  </wsdl:binding>
  <wsdl:service name="VersionCheckService">
    <wsdl:port binding="impl:VersionCheckSoapBinding" name="VersionCheck">
      <wsdlsoap:address location="http://localhost:8080/axis/services/VersionCheck"/>
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>