OSB : BEA-382510: OSB Assign action failed updating variable

Question

Hi all,
I just started learning OSB and created a simple process .
This is my request :
<soapenv:Envelope      xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
     <soap:Header      xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
     </soap:Header>
     <soapenv:Body>
     <hel:getGreeting      xmlns:hel="http://hello.alsb.com/">
     <!--Optional:-->
     <arg0>string</arg0>
     </hel:getGreeting>
     </soapenv:Body>
     </soapenv:Envelope>
im getting a error response in Assign:
<soapenv:Envelope      xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
     <soapenv:Body>
     <soapenv:Fault>
     <faultcode>soapenv:Server</faultcode>
     <faultstring>
     BEA-382510: OSB Assign action failed updating variable "Test": weblogic.xml.query.exceptions.XQueryTypeException: {err}XP0006: "element return { {http://www.w3.org/2004/07/xpath-datatypes}untypedAny }": bad value for type {http://www.w3.org/2001/XMLSchema}string
     </faultstring>
     <detail>
     <con:fault      xmlns:con="http://www.bea.com/wli/sb/context">
     <con:errorCode>BEA-382510</con:errorCode>
     <con:reason>
     OSB Assign action failed updating variable "Test": weblogic.xml.query.exceptions.XQueryTypeException: {err}XP0006: "element return { {http://www.w3.org/2004/07/xpath-datatypes}untypedAny }": bad value for type {http://www.w3.org/2001/XMLSchema}string
     </con:reason>
     <con:location>
     <con:node>RouteTo_HelloWorldBiz</con:node>
     <con:path>response-pipeline</con:path>
     </con:location>
     </con:fault>
     </detail>
     </soapenv:Fault>
     </soapenv:Body>
     </soapenv:Envelope>
This is my Xquery:
xquery version "1.0" encoding "Cp1252";
declare namespace xf = "http://tempuri.org/GoodbyeWorld_SB/XQuery/Hello_to_GoodBye/";
declare function xf:Hello_to_GoodBye($helloStr as xs:string)
as xs:string {
replace($helloStr, 'HELLO', 'Goodbye')
declare variable $helloStr as xs:string external;
xf:Hello_to_GoodBye($helloStr)
in my message response pipeln of the proxy service:
i have added the assign and given the expression : $body/hel:getGreetingResponse/return
var :Test
After the assign: i have given a replace activity:
xpath: ./hel:getGreetingResponse/return
varabile : body
Expression : string($Test)
when i test in OSB console:
im getting this error:
<soapenv:Envelope      xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
     <soapenv:Body>
     <soapenv:Fault>
     <faultcode>soapenv:Server</faultcode>
     <faultstring>
     BEA-382510: OSB Assign action failed updating variable "Test": weblogic.xml.query.exceptions.XQueryTypeException: {err}XP0006: "element return { {http://www.w3.org/2004/07/xpath-datatypes}untypedAny }": bad value for type {http://www.w3.org/2001/XMLSchema}string
     </faultstring>
     <detail>
     <con:fault      xmlns:con="http://www.bea.com/wli/sb/context">
     <con:errorCode>BEA-382510</con:errorCode>
     <con:reason>
     OSB Assign action failed updating variable "Test": weblogic.xml.query.exceptions.XQueryTypeException: {err}XP0006: "element return { {http://www.w3.org/2004/07/xpath-datatypes}untypedAny }": bad value for type {http://www.w3.org/2001/XMLSchema}string
     </con:reason>
     <con:location>
     <con:node>RouteTo_HelloWorldBiz</con:node>
     <con:path>response-pipeline</con:path>
     </con:location>
     </con:fault>
     </detail>
     </soapenv:Fault>
     </soapenv:Body>
     </soapenv:Envelope>
aany suggestions on where the issue is.
im totaly stuck here:
TIA,
karthik

Answer 1

it is not clear at which point you are invoking Hello_to_GoodBye, and using which argument
anyway it's likely that you are passing an Xml element (a node, something like <hello>Charlie</hello>) instead of a simple type (a string, like "Charlie")
you should use the function data($body/bla) or text ($body/bla/text() ) to extract the value (Charlie) of your element