@SdkInternalApi
    final ListWorldsResult executeListWorlds(ListWorldsRequest listWorldsRequest) {

        ExecutionContext executionContext = createExecutionContext(listWorldsRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<ListWorldsRequest> request = null;
        Response<ListWorldsResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new ListWorldsRequestProtocolMarshaller(protocolFactory).marshall(super.beforeMarshalling(listWorldsRequest));
                // 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, "RoboMaker");
                request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "ListWorlds");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

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

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

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
Lists worlds.
</p>

@param listWorldsRequest
@return Result of the ListWorlds operation returned by the service.
@throws InvalidParameterException
        A parameter specified in a request is not valid, is unsupported, or cannot be used. The returned message
        provides an explanation of the error value.
@throws ThrottlingException
        AWS RoboMaker is temporarily unable to process the request. Try your call again.
@throws InternalServerException
        AWS RoboMaker experienced a service issue. Try your call again.
@sample AWSRoboMaker.ListWorlds
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/robomaker-2018-06-29/ListWorlds" target="_top">AWS API
     Documentation</a>
aws-java-sdk-robomaker/src/main/java/com/amazonaws/services/robomaker/AWSRoboMakerClient.java