@SdkInternalApi
    final ModifyDBProxyEndpointResult executeModifyDBProxyEndpoint(ModifyDBProxyEndpointRequest modifyDBProxyEndpointRequest) {

        ExecutionContext executionContext = createExecutionContext(modifyDBProxyEndpointRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<ModifyDBProxyEndpointRequest> request = null;
        Response<ModifyDBProxyEndpointResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new ModifyDBProxyEndpointRequestMarshaller().marshall(super.beforeMarshalling(modifyDBProxyEndpointRequest));
                // 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, "RDS");
                request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "ModifyDBProxyEndpoint");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

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

            StaxResponseHandler<ModifyDBProxyEndpointResult> responseHandler = new StaxResponseHandler<ModifyDBProxyEndpointResult>(
                    new ModifyDBProxyEndpointResultStaxUnmarshaller());

            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
Changes the settings for an existing DB proxy endpoint.
</p>

@param modifyDBProxyEndpointRequest
@return Result of the ModifyDBProxyEndpoint operation returned by the service.
@throws DBProxyEndpointNotFoundException
        The DB proxy endpoint doesn't exist.
@throws DBProxyEndpointAlreadyExistsException
        The specified DB proxy endpoint name must be unique for all DB proxy endpoints owned by your Amazon Web
        Services account in the specified Amazon Web Services Region.
@throws InvalidDBProxyEndpointStateException
        You can't perform this operation while the DB proxy endpoint is in a particular state.
@throws InvalidDBProxyStateException
        The requested operation can't be performed while the proxy is in this state.
@sample AmazonRDS.ModifyDBProxyEndpoint
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/ModifyDBProxyEndpoint" target="_top">AWS API
     Documentation</a>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/AmazonRDSClient.java