}

  // 2. Normalize, from bufferB to bufferA.
  val normalized = normalizeNfc(bufferB.readUtf8())
  bufferA.writeUtf8(normalized)

  // 3. For each label, convert/validate Punycode.
  val decoded = Punycode.decode(bufferA.readUtf8()) ?: return null

  // 4.1 Validate.

  // Must be NFC.
  if (decoded != normalizeNfc(decoded)) return null

   * unsigned.
   *
   * <p><b>Java 8+ users:</b> use {@link Long#toUnsignedString(long, int)} instead.
   *
   * @param x the value to convert to a string.
   * @param radix the radix to use while working with {@code x}
   * @throws IllegalArgumentException if {@code radix} is not between {@link Character#MIN_RADIX}
   *     and {@link Character#MAX_RADIX}.
   */

///

{* ../../docs_src/settings/tutorial001_pv1.py hl[2,5:8,11] *}

////

/// tip | Tipp

Für ein schnelles Copy-and-paste verwenden Sie nicht dieses Beispiel, sondern das letzte unten.

///

// SetModTime sets the [Modified], [ModifiedTime], and [ModifiedDate] fields
// to the given time in UTC.
//
// Deprecated: Use [Modified] instead.
func (h *FileHeader) SetModTime(t time.Time) {
	t = t.UTC() // Convert to UTC for compatibility
	h.Modified = t
	h.ModifiedDate, h.ModifiedTime = timeToMsDosTime(t)
}

const (
	// Unix constants. The specification doesn't mention them,

	n, perr := strconv.ParseInt(nStr, 10, 0) // Intentionally parse as native int
	if perr != nil || n < 5 || n > int64(len(s)) {
		return "", "", s, ErrHeader
	}
	n -= int64(len(nStr) + 1) // convert from index in s to index in rest
	if n <= 0 {
		return "", "", s, ErrHeader
	}

	// Extract everything between the space and the final newline.
	rec, nl, rem := rest[:n-1], rest[n-1:n], rest[n:]

		}
	}

	return nil
}

// Concurrency helpers

type concErr struct {
	errMap     map[string]error
	summaryErr error
}

func (c concErr) Error() string {
	if c.summaryErr != nil {
		return c.summaryErr.Error()
	}
	return "<nil>"
}

func (c concErr) Unwrap() error {
	return c.summaryErr
}

            return this.handle;
        }
        return this.handle.acquire();
    }

    /**
     * Converts an SmbException to an IOException
     *
     * @param se the SmbException to convert
     * @return an IOException wrapping the SmbException
     */
    protected static IOException seToIoe(final SmbException se) {
        IOException ioe = se;
        Throwable root = se.getCause();

    }

    /**
     * Creates an edit body from an elevate word entity for API responses.
     * Processes permissions and converts them to a readable format.
     *
     * @param entity the elevate word entity to convert
     * @return edit body containing the entity data
     */
    protected EditBody createEditBody(final ElevateWord entity) {
        final EditBody body = new EditBody();
        copyBeanToBean(entity, body, copyOp -> {

      builder: HttpUrl.Builder,
      value: String,
    )

    abstract operator fun get(url: HttpUrl): String

    /**
     * Returns a character equivalent to 's' in this component. This is used to convert hostname
     * characters to lowercase.
     */
    open fun canonicalize(s: String): String = s
  }

  /** Tests integration between HttpUrl and the host platform's built-in URL classes, if any. */

- Enhance `SmbTransport` for channel management

---

### Phase 4: Directory Leasing
**Priority: MEDIUM** | **Estimated Effort: 2-3 weeks**

Directory leasing extends the lease concept to directories for improved metadata caching.

#### 4.1 Core Directory Lease Infrastructure
```
Package: jcifs.internal.smb2.lease
├── DirectoryLeaseContext.java    - Directory-specific lease context