*/
@SuppressLint("NewApi")
@SuppressSignatureCheck
class Android10SocketAdapter : SocketAdapter {
  override fun matchesSocket(sslSocket: SSLSocket): Boolean = SSLSockets.isSupportedSocket(sslSocket)

  override fun isSupported(): Boolean = Companion.isSupported()

  @SuppressLint("NewApi")
  override fun getSelectedProtocol(sslSocket: SSLSocket): String? =
    try {

  @VisibleForTesting final Object lock = new Object();

  @GuardedBy("lock")
  final Deque<TearDown> stack = new ArrayDeque<>();

  private final boolean suppressThrows;

  public TearDownStack() {
    this.suppressThrows = false;
  }

  public TearDownStack(boolean suppressThrows) {
    this.suppressThrows = suppressThrows;
  }

  @Override
  public final void addTearDown(TearDown tearDown) {

      int i;

      @Override
      public boolean hasNext() {
        return i < array.length;
      }

      @Override
      public String next() {
        if (!hasNext()) {
          throw new NoSuchElementException();
        }
        return array[i++];
      }

      @Override
      public boolean hasPrevious() {
        return i > 0;
      }

      @Override

  @VisibleForTesting final Object lock = new Object();

  @GuardedBy("lock")
  final Deque<TearDown> stack = new ArrayDeque<>();

  private final boolean suppressThrows;

  public TearDownStack() {
    this.suppressThrows = false;
  }

  public TearDownStack(boolean suppressThrows) {
    this.suppressThrows = suppressThrows;
  }

  @Override
  public final void addTearDown(TearDown tearDown) {

     *
     * @param external
     *            If {@code true}, external access is allowed.
     * @return a {@link SchemaFactory} for W3C XML Schema
     */
    public static SchemaFactory newW3cXmlSchemaFactory(final boolean external) {
        final SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        if (!external) {
            disableExternalResources(schemaFactory);
        }

    /**
     * Returns the default classifier used if a different one is not set in pom.xml.
     *
     * @return the classifier
     */
    String getClassifier();

    String getPackaging();

    boolean isIncludesDependencies();

    String getLanguage();

    /**
     * Specifies if the artifact contains java classes and can be added to the classpath.

     * @param writableStackTrace whether the stack trace should be writable
     */
    protected FessSystemException(final String message, final boolean enableSuppression, final boolean writableStackTrace) {
        super(message, null, enableSuppression, writableStackTrace);
    }

    return 1;
  }

  @Override
  public boolean contains(@Nullable Object target) {
    return element.equals(target);
  }

  @Override
  public UnmodifiableIterator<E> iterator() {
    return singletonIterator(element);
  }

  @Override
  public ImmutableList<E> asList() {
    return ImmutableList.of(element);
  }

  @Override
  boolean isPartialView() {
    return false;
  }

  @Override

@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) {

    /**
     * Checks if the request will be handled asynchronously.
     *
     * @return request was handled asynchronously
     */
    boolean isResponseAsync();

    /**
     *
     * @return next chained message
     */
    @Override
    CommonServerMessageBlockRequest getNext();

    /**
     * Splits this request for processing.
     *