return this;
  }

  private long elapsedNanos() {
    return isRunning ? ticker.read() - startTick + elapsedNanos : elapsedNanos;
  }

  /**
   * Returns the current elapsed time shown on this stopwatch, expressed in the desired time unit,
   * with any fraction rounded down.
   *
   * <p><b>Note:</b> the overhead of measurement can be more than a microsecond, so it is generally

    protected int maxErrorCount = 2;

    /** List of finished crawler session IDs for cleanup */
    protected List<String> finishedSessionIdList = new ArrayList<>();

    /** List of document boost matchers for scoring enhancement */
    private final List<DocBoostMatcher> docBoostMatcherList = new ArrayList<>();

    /** List of active crawler instances */
    private List<Crawler> crawlerList;

 * @since 15.0
 */
@GwtCompatible
@SuppressWarnings("EscapedEntity") // We do mean for the user to see "<" etc.
public abstract class UnicodeEscaper extends Escaper {
  /** The amount of padding (chars) to use when growing the escape buffer. */
  private static final int DEST_PAD = 32;

  /** Constructor for use by subclasses. */
  protected UnicodeEscaper() {}

  /**

        }
        return OptionalEntity.of(list.get(0));
    }

    /**
     * Stores (inserts or updates) a data configuration.
     *
     * <p>This method encrypts sensitive handler parameters before storing
     * and immediately refreshes the index to ensure the change is visible.
     * If the configuration already exists (based on ID), it will be updated;
     * otherwise, a new configuration will be created.</p>
     *

                foundTestMethod = true;
                break;
            }
        }
        assertTrue(foundTestMethod);
    }

    @Test
    public void test_throwAndCatch() {
        // Test throwing and catching the exception
        String expectedMessage = "Offset limit exceeded: 10000";

        try {
            throw new ResultOffsetExceededException(expectedMessage);

   * range. If {@code safeMax < safeMin} then no characters are considered safe. This initializer is
   * useful when explicit instances of ArrayBasedEscaperMap are used to allow the sharing of large
   * replacement mappings.
   *
   * <p>If a character has no mapped replacement then it is checked against the safe range. If it

     */
    protected class ProtwordsUpdater implements Closeable {

        /** Flag indicating if the update should be committed */
        protected boolean isCommit = false;

        /** Temporary file for storing updates */
        protected File newFile;

        /** Writer for writing to the temporary file */
        protected Writer writer;

        /** The item being updated */
        protected ProtwordsItem item;

 */
@GwtCompatible
@SuppressWarnings("serial") // uses writeReplace(), not default serialization
final class RegularImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {
  @SuppressWarnings("unchecked") // TODO(cpovirk): Consider storing Entry<?, ?>[] instead.
  static final RegularImmutableBiMap<Object, Object> EMPTY =
      new RegularImmutableBiMap<>(
          null, null, (Entry<Object, Object>[]) ImmutableMap.EMPTY_ENTRY_ARRAY, 0, 0);

    /** Request attribute key for storing queries. */
    public static final String REQUEST_QUERIES = "fess.Queries";

    /** Request attribute key for storing highlight queries. */
    public static final String HIGHLIGHT_QUERIES = "fess.HighlightQueries";

    /** Request attribute key for storing field logs. */
    public static final String FIELD_LOGS = "fess.FieldLogs";

     */
    public RelatedContentHelper() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(RelatedContentHelper.class);

    /**
     * Cache map storing related content configurations organized by virtual host key.
     * The outer map key is the virtual host key, and the value is a pair containing:
     * - First: Map of exact term matches (term -> content)