}
  }

  /**
   * This method returns a {@code ImmutableSortedMap}, consisting of the entries whose keys are less
   * than {@code toKey}.
   *
   * <p>The {@link SortedMap#headMap} documentation states that a submap of a submap throws an
   * {@link IllegalArgumentException} if passed a {@code toKey} greater than an earlier {@code
   * toKey}. However, this method doesn't throw an exception in that situation, but instead keeps

the source object version, such as metadata updates via PutObjectTagging, PutObjectRetention, PutObjectLegalHold and COPY api are replicated in a similar manner to target version, with the `X-Amz-Replication-Status` again cycling through the same states.

The description above details one way replication from source to target w.r.t incoming object uploads and metadata changes to source object version. If active-active replication is configured, any incoming uploads and metadata changes to...

* the system authenticates the user

* the CLI
* the command line interface

* the server
* the client

* the cloud provider
* the cloud service

* the development
* the development stages

* the dict
* the dictionary
* the enumeration
* the enum
* the enum member

* the encoder
* the decoder
* to encode
* to decode

* the exception
* to raise

	if len(b) > 0 && !strings.HasSuffix(b, slashSeparator) {
		b += slashSeparator
	}
	return b
}

// update cache with new status.
// The updates are conditional so multiple callers can update with different states.
func (m *metacache) update(update metacache) {
	now := UTCNow()
	m.lastUpdate = now

	if update.lastHandout.After(m.lastHandout) {
		m.lastHandout = update.lastUpdate
		if m.lastHandout.After(now) {

      return null;
    }
    return escapeUnsafe(c);
  }

  /**
   * Escapes a {@code char} value that has no direct explicit value in the replacement array and
   * lies outside the stated safe range. Subclasses should override this method to provide
   * generalized escaping for characters.
   *
   * <p>Note that arrays returned by this method must not be modified once they have been returned.

 * instances; usually this is [OkHttpClient].
 *
 * ## Web Socket Lifecycle
 *
 * Upon normal operation each web socket progresses through a sequence of states:
 *
 *  * **Connecting:** the initial state of each web socket. Messages may be enqueued but they won't
 *    be transmitted until the web socket is open.
 *
 *  * **Open:** the web socket has been accepted by the remote peer and is fully operational.

- **MS-SMB2 Section 3.3.5.9.11**: Directory Leasing and Caching

## 3. Directory Lease Types

### 3.1 Directory-Specific Lease States
```java
public class DirectoryLeaseState extends Smb2LeaseState {
    // Standard lease states apply, plus directory-specific semantics:
    
    // READ_CACHING for directories means:
    // - Can cache directory enumeration results

    // Fail fast on a null. We throw NPE here because the contract of Executor states that it throws
    // NPE on null listener, so we propagate that contract up into the add method as well.
    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that

	globalLocalDrivesMu.RLock()
	localDrives := cloneDrives(globalLocalDrivesMap)
	globalLocalDrivesMu.RUnlock()

	// Initialize sync waitgroup.
	g := errgroup.WithNErrs(len(localDrives))

	// Disk states slices
	beforeState := make([]string, len(localDrives))
	afterState := make([]string, len(localDrives))

	// Make a volume entry on all underlying storage disks.
	for index := range localDrives {

* the system authenticates the user

* the CLI
* the command line interface

* the server
* the client

* the cloud provider
* the cloud service

* the development
* the development stages

* the dict
* the dictionary
* the enumeration
* the enum
* the enum member

* the encoder
* the decoder
* to encode
* to decode

* the exception
* to raise