@NullMarked
public class AbstractIteratorTest extends TestCase {

  public void testDefaultBehaviorOfNextAndHasNext() {

    // This sample AbstractIterator returns 0 on the first call, 1 on the
    // second, then signals that it's reached the end of the data
    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {
          private int rep;

          @Override
          public @Nullable Integer computeNext() {

   * @throws EOFException if this stream reaches the end before reading all the bytes.
   * @throws IOException if an I/O error occurs.
   */
  public static void readFully(InputStream in, byte[] b, int off, int len) throws IOException {
    int read = read(in, b, off, len);
    if (read != len) {
      throw new EOFException(
          "reached end of stream after reading " + read + " bytes; " + len + " bytes expected");

   * data section was empty. Any number of calls to [Callback.onRetryChange] may occur while
   * processing an event.
   *
   * @return false when EOF is reached
   */
  @Throws(IOException::class)
  fun processNextEvent(): Boolean {
    var id = lastId
    var type: String? = null
    val data = Buffer()

    while (true) {
      when (source.select(options)) {

     *
     * @param reader
     *            the {@link BufferedReader} (must not be {@literal null})
     * @return a line of text, or {@literal null} if the end of the stream has been reached
     * @see BufferedReader#readLine()
     */
    public static String readLine(final BufferedReader reader) {
        assertArgumentNotNull("reader", reader);

        try {

import java.util.Iterator;
import java.util.Set;

/**
 * A {@link Set} implementation that stores its elements in a {@link LruHashMap}.
 * <p>
 * This set has a fixed maximum capacity. When the capacity is reached and a new element is added,
 * the least recently used element is removed.
 * </p>
 * @author shinsuke
 * @param <E> the type of elements maintained by this set
 */

   *     which case the input string is always returned.
   * @param padChar the character to insert at the beginning of the result until the minimum length
   *     is reached
   * @return the padded string
   */
  public static String padStart(String string, int minLength, char padChar) {
    checkNotNull(string); // eager for GWT.
    if (string.length() >= minLength) {
      return string;

        break;
      }
    }
    return processor.getResult();
  }

  /**
   * Reads and discards data from the given {@code Readable} until the end of the stream is reached.
   * Returns the total number of chars read. Does not close the stream.
   *
   * @since 20.0
   */
  @CanIgnoreReturnValue
  public static long exhaust(Readable readable) throws IOException {

   */
  Set<N> adjacentNodes(N node);

  /**
   * Returns a live view of all nodes in this network adjacent to {@code node} which can be reached
   * by traversing {@code node}'s incoming edges <i>against</i> the direction (if any) of the edge.
   *
   * <p>In an undirected network, this is equivalent to {@link #adjacentNodes(Object)}.
   *

        }
        is SocketException -> {
          // Conscrypt, JDK 8 (>= 292), JDK 9
        }
        is ConnectionShutdownException -> {
          // It didn't fail until it reached the application layer.
        }
        else -> {
          assertThat(expected.message).isEqualTo("exhausted all routes")
        }
      }
    }
  }

  @Test
  fun invalidClientAuthEvents() {

        throw e
      }

    /**
     * Closes the cache entry and makes the socket available for reuse. This should be invoked when
     * the end of the body has been reached.
     */
    fun responseBodyComplete(trailers: Headers) {
      if (state == STATE_CLOSED) return
      if (state != STATE_READING_RESPONSE_BODY) throw IllegalStateException("state: $state")