// NewFromFunc allocates a new cached value instance and initializes it with an
// update function, making it ready for use.
func NewFromFunc[T any](ttl time.Duration, opts Opts, update func(ctx context.Context) (T, error)) *Cache[T] {
	return &Cache[T]{
		ttl:      ttl,
		updateFn: update,
		opts:     opts,
	}
}

// InitOnce initializes the cache with a TTL and an update function. It is
// guaranteed to be called only once.

        // Setup FessConfig with proper initialization
        setupBaseFessConfig();

        // Initialize QueryFieldConfig
        QueryFieldConfig queryFieldConfig = new QueryFieldConfig();
        queryFieldConfig.init();
        ComponentUtil.register(queryFieldConfig, "queryFieldConfig");

        // Initialize QueryParser
        QueryParser queryParser = new QueryParser();
        queryParser.init();

        }
    }

    /**
     * Initializes the {@link Logger}.
     */
    protected static synchronized void initialize() {
        DisposableUtil.addFirst(() -> {
            initialized = false;
            loggers.clear();
            factory.releaseAll();
        });
        initialized = true;
    }

    /**
     * Returns the logger adapter factory.

            if (!initialized) {
                DisposableUtil.add(BeanDescFactory::clear);
                initialized = true;
            }
        }
    }

    /**
     * Clears the cache.
     */
    public static void clear() {
        beanDescCache.clear();
        initialized = false;
    }

    }

    /**
     * Initialize DiSNI components if not already initialized
     *
     * @throws IOException if initialization fails
     */
    private void ensureInitialized() throws IOException {
        if (!initialized) {
            try {
                // In a real implementation, this would initialize DiSNI:

				logger.Info("Waiting for OpenID to be initialized.. (retrying in %s)", retryInterval)
			}
			if !ldapInit {
				logger.Info("Waiting for LDAP to be initialized.. (retrying in %s)", retryInterval)
			}
			if !authNInit {
				logger.Info("Waiting for AuthN to be initialized.. (retrying in %s)", retryInterval)
			}
			if !authZInit {
				logger.Info("Waiting for AuthZ to be initialized.. (retrying in %s)", retryInterval)
			}

	nDisks := 16 // Maximum disks.
	var erasureDisks []string
	for range nDisks {
		// Do not attempt to create this path, the test validates
		// so that newErasureSets initializes non existing paths
		// and successfully returns initialized object layer.
		disk := filepath.Join(globalTestTmpDir, "minio-"+nextSuffix())
		erasureDisks = append(erasureDisks, disk)
		defer os.RemoveAll(disk)
	}

            emptyGenerator.isTarget(docMap);
        } catch (IllegalStateException e) {
            // Expected when container is not initialized
            assertTrue(e.getMessage().contains("Not initialized"));
        }
    }

    @Test
    public void test_getName() {
        // Initialize without container
        emptyGenerator = new EmptyGenerator();

        // Test default name (null)

        // Assert that the public 'sids' field is initialized as expected
        assertEquals(sids, request.sids, "The 'sids' field should be initialized by the constructor.");

        // Use reflection to access and verify protected fields from the parent class DcerpcMessage
        Field ptypeField = DcerpcMessage.class.getDeclaredField("ptype");

var errInvalidRangeSource = errors.New("Range specified exceeds source object size")

// error returned by disks which are to be initialized are waiting for the
// first server to initialize them in distributed set to initialize them.
var errNotFirstDisk = errors.New("Not first drive")

// error returned by first disk waiting to initialize other servers.
var errFirstDiskWait = errors.New("Waiting on other drives")

// error returned for a negative actual size.