I just wanted to see if anybody here has ever seen this error message returned from a web service. The weird part is it works 99% of the time and once in a while when one of our European customers calls our web service using SOAP they get this error message back.

Here is an example call to the service
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoa... xmlns:ns1="http://v1.webservices... xmlns:xsd="http://www.w3.org/200... xmlns:xsi="http://www.w3.org/200... xmlns:SOAP-ENC="http://schemas.xmlsoa... SOAP-ENV:encodingStyle="http://schemas.xmlsoa...
<SOAP-ENV:Header>
<ns1:authentication xsi:type="authentication">
<username>xxx</username>
<password>xxx</password>
</ns1:authentication>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<ns1:createMember>
<status xsi:type="xsd:string">U</status>
<name1 xsi:type="xsd:string">firstname, lastname</name1>
<name2 xsi:type="xsd:string"></name2>
<address1 xsi:type="xsd:string">Zorndorfer Strasse 33</address1>
<address2 xsi:type="xsd:string"></address2>
<address3 xsi:type="xsd:string"></address3>
<address4 xsi:type="xsd:string"></address4>
<city xsi:type="xsd:string">Stuttgart</city>
<stateCode xsi:type="xsd:string"></stateCode>
<countryCode xsi:type="xsd:string">DE</countryCode>
<postalCode xsi:type="xsd:string">70449</postalCode>
<phone1 xsi:type="xsd:string">+49 888888888</phone1>
<phone2 xsi:type="xsd:string"></phone2>
<email xsi:type="xsd:string">email address</email>
<referral xsi:type="xsd:string">777898205</referral>
<sponsor xsi:type="xsd:string">777898205</sponsor>
<ssn xsi:type="xsd:string"></ssn>
<source xsi:type="xsd:string">gene</source>
<userName xsi:type="xsd:string"></userName>
<password xsi:type="xsd:string"></password>
<question xsi:type="xsd:string"></question>
<answer xsi:type="xsd:string"></answer>
<externalId xsi:type="xsd:string">637656</externalId>
<placement xsi:type="xsd:string"></placement>
<entryDate xsi:type="xsd:string">06/18/2010</entryDate>
<sponsorBusinessCenterId xsi:type="xsd:string">1</sponsorBusinessCenterId>
<enrollerBusinessCenterId xsi:type="xsd:string">1</enrollerBusinessCenterId>
</ns1:createMember>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>



Here is the error message.

array (
'ERROR' =>
array (
'error_number' => 'soapenv:Server.userException',
'error_description' => 'coldfusion.xml.rpc.CFCInvocationException: [java.lang.ClassNotFoundException : webservices.v1.CreateMemberResp][java.lang.LinkageError : loader (instance of coldfusion/xml/rpc/SkeletonClassLoader): attempted duplicate class definition for name: "webservices/v1/CreateMemberResp"]',
),
)


This happened yesterday and today and has not happened. Before that it was one month ago they got this error. Nothing has been changed in the code in about a year.

Does anyone know what this message means?

Thanks for any help, Much appreciated.