How to resolve HTTPS connection errors in mule?

Question

Below is the end system(Eloqua) connection code.

 <http:request config-ref="Eloqua_Bulk_API" path="/customObjects/{customObjectId}/fields" method="GET" doc:name="Eloqua Get CDO fields">
                            <http:request-builder>
                                <http:uri-param paramName="customObjectId" value="#[flowVars.cdo.id]"/>
        </http:request-builder>
</http:request>

But not not getting proper repose, it is throwing below error message.

<CustomObjectFieldSearchResponse xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="">
<ResponseStatus>
<ErrorCode>ArgumentNullException</ErrorCode>
<Message>As result 'CustomObjectFieldSearchResponse' is not a supported responseType, a defaultAction must be supplied
Parameter name: defaultAction</Message>
</ResponseStatus>
</CustomObjectFieldSearchResponse> 

Message               : Response code 500 mapped as failure.
Payload               : org.glassfish.grizzly.utils.BufferInputStream@1f0131c5
Element               : /SAPBWServiceReqInsertUpdate/input/0/0/EloquaLookupServiceRequestCDOBulk/subprocessors/1/EloquaLookupFields/subprocessors/0/0/1/2 @ nol-integration-nonmaven:bulk-integration.xml:92 (Eloqua Get CDO fields)
Element XML           : <http:request config-ref="Eloqua_Bulk_API" path="/customObjects/{customObjectId}/fields" method="GET" doc:name="Eloqua Get CDO fields">
                        <http:request-builder>
                        <http:uri-param paramName="customObjectId" value="#[flowVars.cdo.id]"></http:uri-param>
                        </http:request-builder>
                        </http:request>
--------------------------------------------------------------------------------
Root Exception stack trace:
org.mule.module.http.internal.request.ResponseValidatorException: Response code 500 mapped as failure.
    at org.mule.module.http.internal.request.SuccessStatusCodeValidator.validate(SuccessStatusCodeValidator.java:37)
    at org.mule.module.http.internal.request.DefaultHttpRequester.validateResponse(DefaultHttpRequester.java:413)
    at org.mule.module.http.internal.request.DefaultHttpRequester.innerProcess(DefaultHttpRequester.java:401)
    at org.mule.module.http.internal.request.DefaultHttpRequester.processBlocking(DefaultHttpRequester.java:221)
    at org.mule.processor.AbstractNonBlockingMessageProcessor.process(AbstractNonBlockingMessageProcessor.java:43)
    at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:27)
    at org.mule.execution.MessageProcessorNotificationExecutionInterceptor.execute(MessageProcessorNotificationExecutionInterceptor.java:108)

when i try from SOAPUI it is fetching the data properly.

Answer 1

I added added the below header in the request(http request/component). It is working fine.

name: Content-Type value: application/json