ErrNoSuchBucket: {
		Code:           "NoSuchBucket",
		Description:    "The specified bucket does not exist",
		HTTPStatusCode: http.StatusNotFound,
	},
	ErrNoSuchBucketPolicy: {
		Code:           "NoSuchBucketPolicy",
		Description:    "The bucket policy does not exist",
		HTTPStatusCode: http.StatusNotFound,
	},
	ErrNoSuchBucketLifecycle: {
		Code:           "NoSuchBucketLifecycle",

			accessKey:          credentials.AccessKey,
			secretKey:          credentials.SecretKey,
			expectedRespStatus: http.StatusNotFound,
		},
		// Test case - 9.
		// non-existent bucket is used (with invalid bucket name)
		// writing BucketPolicy should fail.
		// should result in 404 StatusNotFound
		{
			bucketName:         ".invalid-bucket",

			HTTPStatusCode: http.StatusBadRequest,
		}
	case config.ErrConfigNotFound:
		apiErr = APIError{
			Code:           "XMinioConfigNotFoundError",
			Description:    e.Error(),
			HTTPStatusCode: http.StatusNotFound,
		}
	case config.ErrConfigGeneric:
		apiErr = APIError{
			Code:           "XMinioConfigError",
			Description:    e.Error(),
			HTTPStatusCode: http.StatusBadRequest,
		}
	case AdminError:

		// Expecting the response status code to http.StatusNotFound (404).
		{
			bucketName:       bucketName,
			uploadID:         uploadID,
			copySourceHeader: url.QueryEscape(SlashSeparator + bucketName + SlashSeparator + "non-existent-object"),
			accessKey:        credentials.AccessKey,
			secretKey:        credentials.SecretKey,

			expectedRespStatus: http.StatusNotFound,
		},

		// Test case - 9.

	switch resp.StatusCode {
	case http.StatusOK, http.StatusPartialContent:
		var u User
		if err = json.NewDecoder(resp.Body).Decode(&u); err != nil {
			return User{}, err
		}
		return u, nil
	case http.StatusNotFound:
		return User{
			ID:      userid,
			Enabled: false,
		}, nil
	case http.StatusUnauthorized:
		return User{}, ErrAccessTokenExpired
	}

	if err != nil {
		return nil, err
	}

	resp, err := c.clnt.Do(req)
	if err != nil {
		return nil, err
	}
	defer xhttp.DrainBody(resp.Body)

	switch resp.StatusCode {
	case http.StatusNotFound:
		return nil, ErrKeyMissing
	case http.StatusOK:
		co := &ObjectInfo{}
		return co, co.DecodeMsg(msgp.NewReader(resp.Body))
	default:
		return nil, ErrInvalidArgument
	}
}

	}
	// error returned when remote tier is not found
	errTierNotFound = AdminError{
		Code:       "XMinioAdminTierNotFound",
		Message:    "Specified remote tier was not found",
		StatusCode: http.StatusNotFound,
	}
	// error returned when remote tier name is not in uppercase
	errTierNameNotUppercase = AdminError{
		Code:       "XMinioAdminTierNameNotUpperCase",
		Message:    "Tier name must be in uppercase",

		err = NotImplemented{}
	case "OutOfRangeInput":
		err = ObjectNameInvalid{
			Bucket: bucket,
			Object: object,
		}
	default:
		switch statusCode {
		case http.StatusNotFound:
			if object != "" {
				err = ObjectNotFound{
					Bucket: bucket,
					Object: object,
				}
			} else {
				err = BucketNotFound{Bucket: bucket}
			}
		case http.StatusBadRequest:

	"Unauthorized":                    http.StatusUnauthorized,
	"Payment Required":                http.StatusPaymentRequired,
	"Forbidden":                       http.StatusForbidden,
	"Not Found":                       http.StatusNotFound,
	"Method Not Allowed":              http.StatusMethodNotAllowed,
	"Not Acceptable":                  http.StatusNotAcceptable,
	"Proxy Authentication Required":   http.StatusProxyAuthRequired,

	var notFoundHandler http.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		http.Error(w, "Metrics Resource Not found", http.StatusNotFound)
	})

	// Require that metrics path has at least component.
	if path == "/" {
		return notFoundHandler
	}

	if isListingRequest {
		handler := h.listMetrics(path)
		if handler == nil {