@SdkInternalApi
    final GetFileUploadURLResult executeGetFileUploadURL(GetFileUploadURLRequest getFileUploadURLRequest) {

        ExecutionContext executionContext = createExecutionContext(getFileUploadURLRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<GetFileUploadURLRequest> request = null;
        Response<GetFileUploadURLResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new GetFileUploadURLRequestProtocolMarshaller(protocolFactory).marshall(super.beforeMarshalling(getFileUploadURLRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
                request.addHandlerContext(HandlerContextKey.CLIENT_ENDPOINT, endpoint);
                request.addHandlerContext(HandlerContextKey.ENDPOINT_OVERRIDDEN, isEndpointOverridden());
                request.addHandlerContext(HandlerContextKey.SIGNING_REGION, getSigningRegion());
                request.addHandlerContext(HandlerContextKey.SERVICE_ID, "MTurk");
                request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "GetFileUploadURL");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<GetFileUploadURLResult>> responseHandler = protocolFactory.createResponseHandler(
                    new JsonOperationMetadata().withPayloadJson(true).withHasStreamingSuccessResponse(false), new GetFileUploadURLResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
The <code>GetFileUploadURL</code> operation generates and returns a temporary URL. You use the temporary URL to
retrieve a file uploaded by a Worker as an answer to a FileUploadAnswer question for a HIT. The temporary URL is
generated the instant the GetFileUploadURL operation is called, and is valid for 60 seconds. You can get a
temporary file upload URL any time until the HIT is disposed. After the HIT is disposed, any uploaded files are
deleted, and cannot be retrieved. Pending Deprecation on December 12, 2017. The Answer Specification structure
will no longer support the <code>FileUploadAnswer</code> element to be used for the QuestionForm data structure.
Instead, we recommend that Requesters who want to create HITs asking Workers to upload files to use Amazon S3.
</p>

@param getFileUploadURLRequest
@return Result of the GetFileUploadURL operation returned by the service.
@throws ServiceException
        Amazon Mechanical Turk is temporarily unable to process your request. Try your call again.
@throws RequestErrorException
        Your request is invalid.
@sample AmazonMTurk.GetFileUploadURL
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/mturk-requester-2017-01-17/GetFileUploadURL"
     target="_top">AWS API Documentation</a>
aws-java-sdk-mechanicalturkrequester/src/main/java/com/amazonaws/services/mturk/AmazonMTurkClient.java