@SdkInternalApi
    final DBClusterParameterGroup executeCopyDBClusterParameterGroup(CopyDBClusterParameterGroupRequest copyDBClusterParameterGroupRequest) {

        ExecutionContext executionContext = createExecutionContext(copyDBClusterParameterGroupRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<CopyDBClusterParameterGroupRequest> request = null;
        Response<DBClusterParameterGroup> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new CopyDBClusterParameterGroupRequestMarshaller().marshall(super.beforeMarshalling(copyDBClusterParameterGroupRequest));
                // 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, "CopyDBClusterParameterGroup");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

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

            StaxResponseHandler<DBClusterParameterGroup> responseHandler = new StaxResponseHandler<DBClusterParameterGroup>(
                    new DBClusterParameterGroupStaxUnmarshaller());

            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
Copies the specified DB cluster parameter group.
</p>
<note>
<p>
You can't copy a default DB cluster parameter group. Instead, create a new custom DB cluster parameter group,
which copies the default parameters and values for the specified DB cluster parameter group family.
</p>
</note>

@param copyDBClusterParameterGroupRequest
@return Result of the CopyDBClusterParameterGroup operation returned by the service.
@throws DBParameterGroupNotFoundException
        <code>DBParameterGroupName</code> doesn't refer to an existing DB parameter group.
@throws DBParameterGroupQuotaExceededException
        The request would result in the user exceeding the allowed number of DB parameter groups.
@throws DBParameterGroupAlreadyExistsException
        A DB parameter group with the same name exists.
@sample AmazonRDS.CopyDBClusterParameterGroup
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/CopyDBClusterParameterGroup"
     target="_top">AWS API Documentation</a>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/AmazonRDSClient.java