public static final int MAX_BUFFER_SIZE = 65536; // 64KB default max buffer
    public static final int MAX_SMB2_BUFFER_SIZE = 8388608; // 8MB for SMB2/3
    public static final int MAX_CREDITS = 65535;

    // Patterns for validation
    private static final Pattern VALID_USERNAME = Pattern.compile("^[a-zA-Z0-9._\\-@]+$");
    private static final Pattern VALID_DOMAIN = Pattern.compile("^[a-zA-Z0-9._\\-]+$");

                implements ArtifactCoordinatesFactoryRequest {
            private final String groupId;
            private final String artifactId;
            private final String version;
            private final String classifier;
            private final String extension;
            private final String type;
            private final String coordinatesString;

            @SuppressWarnings("checkstyle:ParameterNumber")

  }

  private static final class BigIntegerDomain extends DiscreteDomain<BigInteger>
      implements Serializable {
    private static final BigIntegerDomain INSTANCE = new BigIntegerDomain();

    BigIntegerDomain() {
      super(true);
    }

    private static final BigInteger MIN_LONG = BigInteger.valueOf(Long.MIN_VALUE);
    private static final BigInteger MAX_LONG = BigInteger.valueOf(Long.MAX_VALUE);

  }

  private static final class PostOrderNode<T> {
    final T root;
    final Iterator<T> childIterator;

    PostOrderNode(T root, Iterator<T> childIterator) {
      this.root = checkNotNull(root);
      this.childIterator = checkNotNull(childIterator);
    }
  }

  private final class PostOrderIterator extends AbstractIterator<T> {
    private final ArrayDeque<PostOrderNode<T>> stack;

    /** Serial version UID for serialization. */
    private static final long serialVersionUID = 1L;

    /**
     * Constructs a new SearchQueryException with the specified detail message and cause.
     *
     * @param message The detail message explaining the exception
     * @param cause The cause of this exception
     */
    public SearchQueryException(final String message, final Throwable cause) {
        super(message, cause);
    }

     * @param cause the cause of this exception
     */
    public RuntimeCIFSException(final String message, final Throwable cause) {
        super(message, cause);
    }

    /**
     * Constructs a runtime CIFS exception with the specified detail message.
     *
     * @param message the detail message
     */
    public RuntimeCIFSException(final String message) {
        super(message);
    }

    /**

     */
    public static Locale getLocale(final String localeStr) {
        // TODO replace with Fess
        Locale locale = LocaleUtil.getDefault();
        if (localeStr != null) {
            final int index = localeStr.indexOf('_');
            if (index < 0) {
                locale = new Locale(localeStr);
            } else {
                final String language = localeStr.substring(0, index);

     * @param cause The cause.
     */
    public SuggestIndexException(final Throwable cause) {
        super(cause);
    }

    /**
     * Constructs a new SuggestIndexException with the specified detail message and cause.
     * @param msg The detail message.
     * @param cause The cause.
     */
    public SuggestIndexException(final String msg, final Throwable cause) {
        super(msg, cause);
    }

     * @return an array of merged SuggestItem objects
     */
    default SuggestItem[] mergeItems(final SuggestItem[] items) {
        final Set<String> mergedIdSet = new HashSet<>();
        final List<SuggestItem> mergedList = new ArrayList<>(items.length);

        for (final SuggestItem item1 : items) {
            final String item1Id = item1.getId();
            if (mergedIdSet.contains(item1Id)) {
                continue;

    // RPC connection parameters
    private static final int WITNESS_RPC_PORT = 135;
    private static final int WITNESS_RPC_TIMEOUT_MS = 5000;

    // RPC operation numbers
    private static final int WITNESS_REGISTER = 0;
    private static final int WITNESS_UNREGISTER = 1;
    private static final int WITNESS_ASYNC_NOTIFY = 2;
    private static final int WITNESS_HEARTBEAT = 3;

    /**