@SdkInternalApi
    final DescribeTargetHealthResult executeDescribeTargetHealth(DescribeTargetHealthRequest describeTargetHealthRequest) {

        ExecutionContext executionContext = createExecutionContext(describeTargetHealthRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<DescribeTargetHealthRequest> request = null;
        Response<DescribeTargetHealthResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new DescribeTargetHealthRequestMarshaller().marshall(super.beforeMarshalling(describeTargetHealthRequest));
                // 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, "Elastic Load Balancing v2");
                request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "DescribeTargetHealth");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

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

            StaxResponseHandler<DescribeTargetHealthResult> responseHandler = new StaxResponseHandler<DescribeTargetHealthResult>(
                    new DescribeTargetHealthResultStaxUnmarshaller());

            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
Describes the health of the specified targets or all of your targets.
</p>

@param describeTargetHealthRequest
@return Result of the DescribeTargetHealth operation returned by the service.
@throws InvalidTargetException
        The specified target does not exist, is not in the same VPC as the target group, or has an unsupported
        instance type.
@throws TargetGroupNotFoundException
        The specified target group does not exist.
@throws HealthUnavailableException
        The health of the specified targets could not be retrieved due to an internal error.
@sample AmazonElasticLoadBalancing.DescribeTargetHealth
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/elasticloadbalancingv2-2015-12-01/DescribeTargetHealth"
     target="_top">AWS API Documentation</a>
aws-java-sdk-elasticloadbalancingv2/src/main/java/com/amazonaws/services/elasticloadbalancingv2/AmazonElasticLoadBalancingClient.java