I have a problem with the Web Service I recently developed. The problem is about the Web Service response. More precisely sometimes the Web Service sends back the following 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>
      <ns1:GetConstants2Response soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="http://usermanagerwstest">
         <GetConstants2Return xsi:type="ns2:CFComponentSkeleton" xmlns:ns2="http://rpc.xml.coldfusion"/>
      </ns1:GetConstants2Response>
   </soapenv:Body>
</soapenv:Envelope>

Instead the correct response (that sometimes shows up in an intermittent way) is reported below:

<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>
      <ns1:GetConstants2Response soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="http://usermanagerwstest">
         <GetConstants2Return xsi:type="ns1:Constants2">
            <BooleanTypeFalse xsi:type="xsd:string">0</BooleanTypeFalse>
            <BooleanTypeTrue xsi:type="xsd:string">1</BooleanTypeTrue>
            <GenderFemale xsi:type="xsd:string">F</GenderFemale>
            <GenderMale xsi:type="xsd:string">M</GenderMale>
            <LanguageEnglish xsi:type="xsd:string">inglese</LanguageEnglish>
            <LanguageItalian xsi:type="xsd:string">italiano</LanguageItalian>
         </GetConstants2Return>
      </ns1:GetConstants2Response>
   </soapenv:Body>
</soapenv:Envelope>

Where does the CFCComponentSkeleton comes from? I thank everybody in advance.