* Converts to {@link Double}.
     *
     * @param o
     *            The object to convert
     * @return The converted {@link Double}
     */
    public static Double toDouble(final Object o) {
        return toDouble(o, null);
    }

    /**
     * Converts to {@link Double}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string

	obj, err := newObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {
		t.Fatal("Unexpected object layer initialization error", err)
	}

	_, ok := obj.(*erasureServerPools)
	if !ok {
		t.Fatal("Unexpected object layer detected", reflect.TypeOf(obj))
	}

	// Tests for Erasure object layer initialization.

	// Create temporary backend for the test server.
	nDisks = 16

  static class SuperClass {
    final List<Object> neitherOverriddenNorAnnotatedEvents = new ArrayList<>();
    final List<Object> overriddenInSubclassNowhereAnnotatedEvents = new ArrayList<>();
    final List<Object> overriddenAndAnnotatedInSubclassEvents = new ArrayList<>();

    public void neitherOverriddenNorAnnotated(Object o) {
      neitherOverriddenNorAnnotatedEvents.add(o);
    }

        Supplier<Object> supplier = () -> null;

        monitorTarget.append(buf, "testKey", supplier);
        assertEquals("\"testKey\":null", buf.toString());
    }

    // Test append method with Integer value
    @Test
    public void test_append_integerValue() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> Integer.valueOf(123);

    }

    return false;
  }

  @Override
  public boolean containsEntry(@Nullable Object key, @Nullable Object value) {
    Collection<V> collection = asMap().get(key);
    return collection != null && collection.contains(value);
  }

  @CanIgnoreReturnValue
  @Override
  public boolean remove(@Nullable Object key, @Nullable Object value) {
    Collection<V> collection = asMap().get(key);

    /**
     * The internal LRU hash map used to store elements.
     */
    private final LruHashMap<E, Object> map;

    // Dummy value to associate with an Object in the backing Map
    private static final Object PRESENT = new Object();

    /**
     * Creates a new {@link LruHashSet} with the specified limit size.
     *
     * @param limitSize

   *
   * @see java.util.Collections#frequency(Collection, Object) Collections.frequency(Collection,
   *     Object)
   */
  public static int frequency(Iterable<?> iterable, @Nullable Object element) {
    if ((iterable instanceof Multiset)) {
      return ((Multiset<?>) iterable).count(element);
    } else if ((iterable instanceof Set)) {

   * just back this out once we stop doing that (which we'll do after our internal GWT setup
   * changes).
   */
  @Override
  public ImmutableMap<Object, Collection<Object>> asMap() {
    return super.asMap();
  }

  private Object readResolve() {
    return INSTANCE; // preserve singleton property
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

    }

    @Override
    public boolean remove(@Nullable Object object) {
      /*
       * `o instanceof Entry` is guaranteed by `contains`, but we check it here to satisfy our
       * nullness checker.
       */
      if (!esDelegate.contains(object) || !(object instanceof Entry)) {
        return false;
      }

      Entry<?, ?> entry = (Entry<?, ?>) object;
      inverse.delegate.remove(entry.getValue());
      /*

            return 2128L;
        }
        if (obj instanceof Object[]) {
            long size = 0;
            for (final Object value : (Object[]) obj) {
                size += sizeOf(value);
            }
            return size;
        }
        if (obj instanceof Collection<?>) {
            long size = 0;
            for (final Object value : (Collection<?>) obj) {
                size += sizeOf(value);