OSB not able uncompress the message from business service when the HTTP status code is 500

(Doc ID 2317640.1)

Last updated on OCTOBER 16, 2017

Applies to:

Oracle Service Bus - Version 12.2.1.2.0 and later
Information in this document applies to any platform.

Symptoms

On : 12.2.1.2.0 version, OSB Transports

OSB not able to parse Item webservice fault message

we have one Oracle service bus project where the Business Service(AnySOAP) calling the below Item Cloud service WSDL with proper credential.
https://eejx-dev1.scm.us2.oraclecloud.com:443/egpItems/ItemServiceV2?wsdl
Attached the zip consisted the wsdl and related xsds.

Normally for success case we are getting proper response like below

<ns0:updateItemResponse
<ns2:result
<ns0:Value
...

But in case of Business error in SOAPUI though we are getting below error






But in Service bus Business service we are getting below error

OSB-380000: [OSB-381304]Exception in HttpOutboundMessageContext.RetrieveHttpResponseWork.run: java.lang.RuntimeException: com.bea.wli.sb.service.handlerchain.HandlerException: Couldn't create SOAP message due to exception: XML reader error: com.ctc.wstx.exc.WstxUnexpectedCharException: Illegal character ((CTRL-CHAR, code 31))
 at [row,col {unknown-source}]: [1,1]
java.lang.RuntimeException: com.bea.wli.sb.service.handlerchain.HandlerException: Couldn't create SOAP message due to exception: XML reader error: com.ctc.wstx.exc.WstxUnexpectedCharException: Illegal character ((CTRL-CHAR, code 31))
 at [row,col {unknown-source}]: [1,1]
 
Attached Request and response payload for reference.
Request to check why OSB business service not able to properly parse fault message in case of Business fault.

Cause

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