*/
    public static void writeThreadDump(final String file) {
        try (final Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), Constants.CHARSET_UTF_8))) {
            processThreadDump(s -> {
                try {
                    writer.write(s);
                    writer.write('\n');
                } catch (final IOException e) {
                    throw new IORuntimeException(e);

    private static final long serialVersionUID = 1L;

    /**
     * Default constructor.
     */
    public KeyMatchPager() {
        // Default constructor
    }

    /** The default page size. */
    public static final int DEFAULT_PAGE_SIZE = 20;

    /** The default current page number. */
    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

   * directly against {@code equals()} rather than through the {@code Equivalence}.
   */
  private final Equivalence<? super T> equivalence;

  private final String relationshipName;
  private final String hashName;
  private final ItemReporter itemReporter;
  private final List<ImmutableList<T>> groups = new ArrayList<>();

  RelationshipTester(
      Equivalence<? super T> equivalence,

    }

    /**
     * Changes the user password.
     *
     * @param form the profile form
     * @return the HTML response
     */
    @Execute
    public HtmlResponse changePassword(final ProfileForm form) {
        final VaErrorHook toIndexPage = () -> {
            form.clearSecurityInfo();
            return asIndexHtml();
        };
        validatePasswordForm(form, toIndexPage);
        if (!getUserBean().isPresent()) {

     */
    public static Long toLong(final Object o) {
        return toLong(o, null);
    }

    /**
     * Converts the given object to a {@link Long}.
     *
     * @param o
     *            the object to convert
     * @param pattern
     *            the pattern string
     * @return the converted {@link Long}
     */
    public static Long toLong(final Object o, final String pattern) {
        return switch (o) {

    protected static final Class<?> suppressUnusedImportLocalDateTime = LocalDateTime.class;

    // ===================================================================================
    //                                                                           Singleton
    //                                                                           =========

     * @param message the detailed error message
     * @param cause the cause of the exception
     */
    public InvalidQueryException(final VaMessenger<FessMessages> messageCode, final String message, final Throwable cause) {
        super(message, cause);
        this.messageCode = messageCode;
    }

    /**
     * Creates a new InvalidQueryException with message code and message.
     *

        return map.isEmpty();
    }

    @Override
    public boolean contains(final Object o) {
        return map.containsKey(o);
    }

    @Override
    public boolean add(final String o) {
        return map.put(o, PRESENT) == null;
    }

    @Override
    public boolean remove(final Object o) {
        return map.remove(o) == PRESENT;
    }

    @Override
    public void clear() {

    protected static final Class<?> suppressUnusedImportLocalDateTime = LocalDateTime.class;

    // ===================================================================================
    //                                                                           Singleton
    //                                                                           =========
    private static final KeyMatchDbm _instance = new KeyMatchDbm();

     */
    public void deleteSearchLog(final Object e) {
        if (e instanceof final ClickLog clickLog) {
            clickLogBhv.delete(clickLog);
        } else if (e instanceof final FavoriteLog favoriteLog) {
            favoriteLogBhv.delete(favoriteLog);
        } else if (e instanceof final UserInfo userInfo) {
            userInfoBhv.delete(userInfo);
        } else if (e instanceof final SearchLog searchLog) {