@GwtCompatible
public interface MapDifference<K extends @Nullable Object, V extends @Nullable Object> {
  /**
   * Returns {@code true} if there are no differences between the two maps; that is, if the maps are
   * equal.
   */
  boolean areEqual();

  /**
   * Returns an unmodifiable map containing the entries from the left map whose keys are not present
   * in the right map.
   */
  Map<K, V> entriesOnlyOnLeft();

  /**

        new ListenableFuture<String>() {
          @Override
          public boolean cancel(boolean interrupt) {
            return false;
          }

          @Override
          public boolean isDone() {
            return true;
          }

          @Override
          public boolean isCancelled() {
            return false; // BAD!!
          }

          @Override

    verifyOccupiedMethodsInAnotherThread(monitor, false, false, 0);
  }

  private static void verifyOccupiedMethodsInCurrentThread(
      Monitor monitor,
      boolean expectedIsOccupied,
      boolean expectedIsOccupiedByCurrentThread,
      int expectedOccupiedDepth) {
    assertEquals(expectedIsOccupied, monitor.isOccupied());

class CollectionBenchmarkSampleData {
  private final boolean isUserTypeFast;
  private final SpecialRandom random;
  private final double hitRate;
  private final int size;

  private final Set<Element> valuesInSet;
  private final Element[] queries;

  CollectionBenchmarkSampleData(int size) {
    this(true, new SpecialRandom(), 1.0, size);
  }

  CollectionBenchmarkSampleData(

    verifyOccupiedMethodsInAnotherThread(monitor, false, false, 0);
  }

  private static void verifyOccupiedMethodsInCurrentThread(
      Monitor monitor,
      boolean expectedIsOccupied,
      boolean expectedIsOccupiedByCurrentThread,
      int expectedOccupiedDepth) {
    assertEquals(expectedIsOccupied, monitor.isOccupied());

    }
    result.add(Challenge(schemeName, parameters))
  }
}

/** Returns true if any commas were skipped. */
private fun Buffer.skipCommasAndWhitespace(): Boolean {
  var commaFound = false
  loop@ while (!exhausted()) {
    when (this[0]) {
      ','.code.toByte() -> {
        // Consume ','.
        readByte()
        commaFound = true
      }

     */
    protected boolean passiveNatWorkaround;

    /**
     * The report active external host.
     */
    protected String reportActiveExternalHost;

    /**
     * Whether to use EPSV with IPv4.
     */
    protected boolean useEPSVwithIPv4;

    /**
     * Whether to use implicit SSL/TLS encryption.
     */
    protected Boolean isImplicit;

    /**

    protected CrawlerContext crawlerContext;

    /**
     * Flag indicating whether the crawler runs in background mode.
     */
    protected boolean background = false;

    /**
     * Flag indicating whether crawler threads run as daemon threads.
     */
    protected boolean daemon = false;

    /**
     * Priority for crawler threads.
     */
    protected int threadPriority = Thread.NORM_PRIORITY;

  public void testRoundIntegralDoubleToInt() {
    for (double d : INTEGRAL_DOUBLE_CANDIDATES) {
      for (RoundingMode mode : ALL_SAFE_ROUNDING_MODES) {
        BigDecimal expected = new BigDecimal(d).setScale(0, mode);
        boolean isInBounds =
            expected.compareTo(MAX_INT_AS_BIG_DECIMAL) <= 0
                & expected.compareTo(MIN_INT_AS_BIG_DECIMAL) >= 0;

        try {

   * @throws NullPointerException if the specified element is null
   */
  @CanIgnoreReturnValue // pushed down from class to method
  @Override
  public boolean offer(E e) {
    Monitor monitor = this.monitor;
    monitor.enter();
    try {
      boolean ok = q.offer(e);
      if (!ok) {
        throw new AssertionError();
      }
      return true;
    } finally {
      monitor.leave();
    }
  }