* Returns a new tree starting at this node, filtering the children.
     * Note that this node will not be filtered and only the children
     * and its descendant will be checked.
     *
     * @param filter the filter to apply
     * @return a new filtered graph
     */
    @Nonnull
    Node filter(@Nonnull Predicate<Node> filter);

    /**
     * Returns a detailed string representation of this dependency node.
     * <p>

        if (data == null) {
            if (serializer == null || rawData == null) {
                throw new CrawlerSystemException("serializer or rawData is null");
            }
            data = serializer.apply(rawData);
        }
        return data;
    }

    /**
     * Set the data.
     * @param data the byte array data to set
     */
    public void setData(final byte[] data) {
        this.data = data;

  // Keep references to loggers to prevent their configuration from being GC'd.
  private val configuredLoggers = CopyOnWriteArraySet<Logger>()

  private val knownLoggers =
    LinkedHashMap<String, String>()
      .apply {
        val packageName = OkHttpClient::class.java.`package`?.name

        if (packageName != null) {
          this[packageName] = "OkHttp"
        }

  public void testForwarding() {
    new ForwardingWrapperTester()
        .testForwarding(
            Set.class,
            new Function<Set, Set>() {
              @Override
              public Set apply(Set delegate) {
                return wrap(delegate);
              }
            });
  }

  public void testEquals() {
    Set<String> set1 = ImmutableSet.of("one");

  }

  // intentionally testing apply() and test() methods
  @SuppressWarnings({
    "deprecation",
    "InlineMeInliner",
  })
  private void reallyTestOneCharMatch(CharMatcher matcher, String s) {
    assertTrue(matcher.matches(s.charAt(0)));
    assertTrue(matcher.apply(s.charAt(0)));
    assertTrue(matcher.test(s.charAt(0)));
    assertEquals(0, matcher.indexIn(s));

   * Multimap<String, Integer> multimap =
   *     ImmutableSetMultimap.of("a", 2, "b", -3, "b", -3, "a", 4, "c", 6);
   * Function<Integer, String> square = new Function<Integer, String>() {
   *     public String apply(Integer in) {
   *       return Integer.toString(in * in);
   *     }
   * };
   * Multimap<String, String> transformed =
   *     Multimaps.transformValues(multimap, square);

   * Multimap<String, Integer> multimap =
   *     ImmutableSetMultimap.of("a", 2, "b", -3, "b", -3, "a", 4, "c", 6);
   * Function<Integer, String> square = new Function<Integer, String>() {
   *     public String apply(Integer in) {
   *       return Integer.toString(in * in);
   *     }
   * };
   * Multimap<String, String> transformed =
   *     Multimaps.transformValues(multimap, square);

              + " map in that class.");
    }
    Object result;
    try {
      result = supplier.get();
    } catch (Throwable t) {
      if (predicate.apply(t)) {
        // We are careful to set up INSTANCE_OF to match each Predicate to its target Class.
        @SuppressWarnings("unchecked")
        T caught = (T) t;
        return caught;
      }

    val sslSocketFactory =
      object : DelegatingSSLSocketFactory(systemSslSocketFactory) {
        override fun configureSocket(sslSocket: SSLSocket): SSLSocket =
          sslSocket.apply {
            if (reuseSession) {
              this.enableSessionCreation = false
            }
          }
      }

    client =
      client
        .newBuilder()
        .connectionSpecs(listOf(spec))

      this.function = checkNotNull(function);
      this.supplier = checkNotNull(supplier);
    }

    @Override
    @ParametricNullness
    public T get() {
      return function.apply(supplier.get());
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof SupplierComposition) {
        SupplierComposition<?, ?> that = (SupplierComposition<?, ?>) obj;