* {@link #transform(ClosingFunction, Executor)} or {@link #transformAsync(AsyncClosingFunction,
 * Executor)} on the input step.
 *
 * <h4>Catching</h4>
 *
 * To derive the next step from a failed input step, call {@link #catching(Class, ClosingFunction,
 * Executor)} or {@link #catchingAsync(Class, AsyncClosingFunction, Executor)} on the input step.
 *
 * <h4>Combining</h4>
 *

  //
  // A consequence of these requirements is that the delegate futures cannot be stored in
  // final fields.
  //
  // For simplicity the rest of this description will discuss Futures.catching since it is the
  // simplest instance, though very similar descriptions apply to many other classes in this file.
  //
  // In the constructor of AbstractCatchingFuture, the delegate future is assigned to a field

       * elements from each bin must either stay at same index, or move with a power of two offset.
       * We eliminate unnecessary node creation by catching cases where old nodes can be reused
       * because their next fields won't change. Statistically, at the default threshold, only
       * about one-sixth of them need cloning when a table doubles. The nodes they replace will be

    /** Cache key for cache message */
    protected static final String CACHE_MSG = "cache_msg";

    /** Pattern for matching local file paths */
    protected static final Pattern LOCAL_PATH_PATTERN = Pattern.compile("^file:/+[a-zA-Z]:");

    /** Pattern for matching shared folder paths */
    protected static final Pattern SHARED_FOLDER_PATTERN = Pattern.compile("^file:/+[^/]\\.");

/**
 * A builder of {@link LoadingCache} and {@link Cache} instances.
 *
 * <h2>Prefer <a href="https://github.com/ben-manes/caffeine/wiki">Caffeine</a> over Guava's caching
 * API</h2>
 *
 * <p>The successor to Guava's caching API is <a
 * href="https://github.com/ben-manes/caffeine/wiki">Caffeine</a>. Its API is designed to make it a

/**
 * A builder of {@link LoadingCache} and {@link Cache} instances.
 *
 * <h2>Prefer <a href="https://github.com/ben-manes/caffeine/wiki">Caffeine</a> over Guava's caching
 * API</h2>
 *
 * <p>The successor to Guava's caching API is <a
 * href="https://github.com/ben-manes/caffeine/wiki">Caffeine</a>. Its API is designed to make it a

			},
			hasRules: false,
		},
		{ // PUT version with no matching tags
			lc: Lifecycle{
				Rules: []Rule{
					rules[0],
				},
			},
			opts: ObjectOpts{
				IsLatest: true,
				Name:     "obj-1",
				Size:     1 * humanize.MiByte,
			},
			hasRules: false,
		},
		{ // PUT version with matching tags
			lc: Lifecycle{
				Rules: []Rule{
					rules[0],
				},

	globalObjectAPI = objLayer
	globalObjLayerMutex.Unlock()

	// When cache is enabled, Put and Get operations are passed
	// to underlying cache layer to manage object layer operation and disk caching
	// operation
	api := objectAPIHandlers{
		ObjectAPI: func() ObjectLayer {
			return globalObjectAPI
		},
	}

	// Register ListBuckets	handler.

	deleteGroupInfo(ctx context.Context, name string) error
}

// iamStorageWatcher is implemented by `IAMStorageAPI` implementers that
// additionally support watching storage for changes.
type iamStorageWatcher interface {
	watch(ctx context.Context, keyPath string) <-chan iamWatchEvent
}

// Set default canned policies only if not already overridden by users.

    protected int connectionCheckInterval = 5; // sec

    /** Idle connection timeout in milliseconds */
    protected long idleConnectionTimeout = 60 * 1000L; // 1min

    /** Pattern for matching HTTP redirect status codes */
    protected Pattern redirectHttpStatusPattern = Pattern.compile("[3][0-9][0-9]");

    /** Whether to use robots.txt disallow rules */
    protected boolean useRobotsTxtDisallows = true;