1. **Directory Leases**: Extend lease support for directories
2. **Lease Key Persistence**: Save lease keys for reconnection
3. **Parent-Child Relationships**: Implement hierarchical leases
4. **Lease Sharing**: Support lease sharing across handles

            for (String repo : repos) {
                // see if this is a negative match
                if (repo.length() > 1 && repo.startsWith("!")) {
                    if (repo.substring(1).equals(originalId)) {
                        // explicitly exclude. Set result and stop processing.
                        result = false;
                        break;
                    }
                }

    // put it back together
    String result = Joiner.on('/').join(path);
    if (pathname.charAt(0) == '/') {
      result = "/" + result;
    }

    while (result.startsWith("/../")) {
      result = result.substring(3);
    }
    if (result.equals("/..")) {
      result = "/";
    } else if (result.isEmpty()) {
      result = ".";
    }

    return result;
  }

  /**

   * static final Multimap<Character, String> FIRST_LETTER_MULTIMAP =
   *     Stream.of("banana", "apple", "carrot", "asparagus", "cherry")
   *         .collect(toImmutableListMultimap(str -> str.charAt(0), str -> str.substring(1)));
   *
   * // is equivalent to
   *
   * static final Multimap<Character, String> FIRST_LETTER_MULTIMAP =
   *     new ImmutableListMultimap.Builder<Character, String>()
   *         .put('b', "anana")

        boolean snapshot = mavenVersion.endsWith("SNAPSHOT");
        if (snapshot) {
            mavenVersion = mavenVersion.substring(0, mavenVersion.length() - "SNAPSHOT".length());
            if (mavenVersion.endsWith("-")) {
                mavenVersion = mavenVersion.substring(0, mavenVersion.length() - 1);
            }
        }
        String[] versionElements = mavenVersion.split("\\.");

                expectedChecksum = expectedChecksum.substring(lastSpacePos + 1);
            } else {
                // remove everything after the first space (if available)
                int spacePos = expectedChecksum.indexOf(' ');

                if (spacePos != -1) {
                    expectedChecksum = expectedChecksum.substring(0, spacePos);
                }
            }

            high = mid - 1
          } else if (labelBytesLeft > publicSuffixBytesLeft) {
            low = mid + end + 1
          } else {
            // Found a match.
            match = this.substring(mid, mid + publicSuffixLength).string(Charsets.UTF_8)
            break
          }
        }
      }
      return match
    }

    internal fun resetForTests() {

            if (lastPos < 0) {
                break;
            }
            if (pos == 0) {
                value = " " + value.substring(lastPos + 3);
            } else {
                value = value.substring(0, pos) + " " + value.substring(lastPos + 3);
            }
            pos = value.indexOf("<!--");
        }
        return value;
    }

    /**

     */
    protected String getDetectText(final String text) {
        final String result;
        if (text.length() <= maxTextLength) {
            result = text;
        } else {
            result = text.substring(0, maxTextLength);
        }
        return result.replaceAll("\\s+", " ");
    }

    /**
     * Returns the supported language for a given language.
     *
     * @param lang The language to check.

     */
    private static String processLine(String line, String mavenProjectBasedir) {
        // Remove comments
        int commentIndex = line.indexOf('#');
        if (commentIndex >= 0) {
            line = line.substring(0, commentIndex);
        }

        // Trim whitespace
        line = line.trim();

        // Replace MAVEN_PROJECTBASEDIR placeholders