* @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
public final class LineReader {
  private final Readable readable;
  private final @Nullable Reader reader;
  private final CharBuffer cbuf = createBuffer();
  private final char[] buf = cbuf.array();

  private final Queue<String> lines = new ArrayDeque<>();
  private final LineBuffer lineBuf =
      new LineBuffer() {
        @Override

   * be accessed.
   */
  @SuppressWarnings("SunApi") // b/345822163
  private static final class UnsafeAtomicHelper extends AtomicHelper {
    static final Unsafe UNSAFE;
    static final long LISTENERS_OFFSET;
    static final long WAITERS_OFFSET;
    static final long VALUE_OFFSET;
    static final long WAITER_THREAD_OFFSET;
    static final long WAITER_NEXT_OFFSET;

    static {
      Unsafe unsafe = null;
      try {

            ScoreFunctionCall<ScoreFunctionCreator<CrawlingInfoCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        CrawlingInfoCQ cq = new CrawlingInfoCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

            ScoreFunctionCall<ScoreFunctionCreator<CrawlingInfoParamCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        CrawlingInfoParamCQ cq = new CrawlingInfoParamCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

     * @return the total number of bytes read into the buffer, or -1 if there is no more data
     * @throws IOException if an I/O error occurs
     */
    @Override
    public int read(final byte[] b, final int off, final int len) throws IOException {
        return inputStream.read(b, off, len);
    }

    /**
     * Reads some number of bytes from the input stream and stores them into the buffer array b.
     *

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

    /**
     * Constructs a new SpnegoException with the specified detail message
     * @param message the detail message
     */
    public SpnegoException(final String message) {
        super(message);
    }

    /**

     */
    public RequestTimeoutException(final String msg, final Throwable rootCause) {
        super(msg, rootCause);
    }

    /**
     * Constructs a new RequestTimeoutException with the specified detail message.
     *
     * @param msg the detail message
     */
    public RequestTimeoutException(final String msg) {
        super(msg);
    }

    /**

  }

  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;

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String osddLinkEnabled = fessConfig.getOsddLinkEnabled();
        if (Constants.TRUE.equalsIgnoreCase(osddLinkEnabled)) {
            return true;
        }

        if (!Constants.AUTO.equalsIgnoreCase(osddLinkEnabled)) {
            return false;
        }

        final String ssoType = fessConfig.getSsoType();

     *
     * @param id     The unique identifier of the item.
     * @param input  The input word.
     * @param output The output stem.
     */
    public StemmerOverrideItem(final long id, final String input, final String output) {
        this.id = id;
        this.input = input;
        this.output = output;

        if (id == 0) {
            // create
            newInput = input;