@SdkInternalApi
    final DescribeJournalS3ExportResult executeDescribeJournalS3Export(DescribeJournalS3ExportRequest describeJournalS3ExportRequest) {

        ExecutionContext executionContext = createExecutionContext(describeJournalS3ExportRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<DescribeJournalS3ExportRequest> request = null;
        Response<DescribeJournalS3ExportResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new DescribeJournalS3ExportRequestProtocolMarshaller(protocolFactory).marshall(super
                        .beforeMarshalling(describeJournalS3ExportRequest));
                // 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, "QLDB");
                request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "DescribeJournalS3Export");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

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

            HttpResponseHandler<AmazonWebServiceResponse<DescribeJournalS3ExportResult>> responseHandler = protocolFactory.createResponseHandler(
                    new JsonOperationMetadata().withPayloadJson(true).withHasStreamingSuccessResponse(false),
                    new DescribeJournalS3ExportResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
Returns information about a journal export job, including the ledger name, export ID, creation time, current
status, and the parameters of the original export creation request.
</p>
<p>
This action does not return any expired export jobs. For more information, see <a href=
"https://docs.aws.amazon.com/qldb/latest/developerguide/export-journal.request.html#export-journal.request.expiration"
>Export job expiration</a> in the <i>Amazon QLDB Developer Guide</i>.
</p>
<p>
If the export job with the given <code>ExportId</code> doesn't exist, then throws
<code>ResourceNotFoundException</code>.
</p>
<p>
If the ledger with the given <code>Name</code> doesn't exist, then throws <code>ResourceNotFoundException</code>.
</p>

@param describeJournalS3ExportRequest
@return Result of the DescribeJournalS3Export operation returned by the service.
@throws ResourceNotFoundException
        The specified resource doesn't exist.
@sample AmazonQLDB.DescribeJournalS3Export
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/qldb-2019-01-02/DescribeJournalS3Export" target="_top">AWS
     API Documentation</a>
aws-java-sdk-qldb/src/main/java/com/amazonaws/services/qldb/AmazonQLDBClient.java