@GwtCompatible
final class Present<T> extends Optional<T> {
  private final T reference;

  Present(T reference) {
    this.reference = reference;
  }

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

  @Override
  public T get() {
    return reference;
  }

  @Override
  public T or(T defaultValue) {

    @Test
    fun `operator or infix modifier change is breaking`() {

        checkNotBinaryCompatibleKotlin(
            v1 = """
                fun Int.invoke(some: Int) {}
                operator fun Boolean.invoke(some: Int) {}

                fun String.invoke(some: Int) {}
                operator fun Long.invoke(some: Int) {}

                fun Float.invoke(some: Int) {}

public static final String HANDLE_STATE_DIR = "jcifs.smb.client.handleStateDirectory";

public boolean isUseDurableHandles() {
    return getBooleanProperty(USE_DURABLE_HANDLES, true);
}

public boolean isUsePersistentHandles() {
    return getBooleanProperty(USE_PERSISTENT_HANDLES, false);
}

public long getDurableHandleTimeout() {

      return Types.toString(componentType) + "[]";
    }

    @Override
    public int hashCode() {
      return componentType.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof GenericArrayType) {
        GenericArrayType that = (GenericArrayType) obj;
        return Objects.equals(getGenericComponentType(), that.getGenericComponentType());

    List<FutureTask<ProjectSegment>> projectBuildFutureTasks = Collections.synchronizedList(new ArrayList<>());

    final boolean finishImmediately;

    public int size() {
        return projectBuildFutureTasks.size();
    }

    public CompletionServiceStub(boolean finishImmediately) {
        this.finishImmediately = finishImmediately;
    }

   *
   * @see <a href=
   *     "https://www.gwtproject.org/doc/latest/DevGuideServerCommunication#DevGuideSerializableTypes">
   *     Documentation about GWT serialization</a>
   */
  boolean serializable() default false;

  /**
   * When {@code true}, the annotated type is emulated in GWT. The emulated source (also known as
   * super-source) is different from the implementation used by the JVM.
   *

    this.resultEquivalence = checkNotNull(resultEquivalence);
  }

  @Override
  protected boolean doEquivalent(F a, F b) {
    return resultEquivalence.equivalent(function.apply(a), function.apply(b));
  }

  @Override
  protected int doHash(F a) {
    return resultEquivalence.hash(function.apply(a));
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    if (obj == this) {
      return true;
    }

  final Equivalence<E> elementEquivalence;

  PairwiseEquivalence(Equivalence<E> elementEquivalence) {
    this.elementEquivalence = Preconditions.checkNotNull(elementEquivalence);
  }

  @Override
  protected boolean doEquivalent(Iterable<T> iterableA, Iterable<T> iterableB) {
    Iterator<T> iteratorA = iterableA.iterator();
    Iterator<T> iteratorB = iterableB.iterator();

    while (iteratorA.hasNext() && iteratorB.hasNext()) {

        // Verify heading metadata
        final String[] headings = extractData.getValues("headings");
        assertNotNull(headings);
        assertTrue(headings.length > 0);

        boolean foundIntroduction = false;
        boolean foundFeatures = false;
        for (final String heading : headings) {
            if (heading.contains("Introduction")) {
                foundIntroduction = true;
            }

 *
 * This class is not thread safe.
 *
 * [rfc_6455]: http://tools.ietf.org/html/rfc6455
 */
class WebSocketWriter(
  private val isClient: Boolean,
  val sink: BufferedSink,
  val random: Random,
  private val perMessageDeflate: Boolean,
  private val noContextTakeover: Boolean,
  private val minimumDeflateSize: Long,
) : Closeable {
  /** This holds outbound data for compression and masking. */