/**
     *
     */
    @Test
    public void testIsArray() {
        assertFalse(ArrayUtil.isArray(null));
        assertFalse(ArrayUtil.isArray("hoge"));
        assertTrue(ArrayUtil.isArray(new Object[] {}));
        assertTrue(ArrayUtil.isArray(new Object[] { "" }));
        assertTrue(ArrayUtil.isArray(new Object[] { "aaa" }));
    }

    /**
     *
     */
    @Test

     * @see #getComponentType()
     */
    public boolean isArray() {
        return type.isGenericArray()
            || (type.isClass() && rawClass().isArray());
    }

    /**
     * Returns the component type of the array type this object represents.
     *
     * @return null if this object does not represent an array type.
     * @see #isArray()
     */
    @Nullable

    delegate.visibleParameterAnnotations?.map { it.has<Nullable>() }.let { parametersNullability ->
        val parameterTypesBinaryNames = visitedSignature?.parameters?.map { if (it.isArray) "${it.typeArguments.single().binaryName}[]" else it.binaryName }
            ?: Type.getArgumentTypes(delegate.desc).map { it.className }
        val names by unsafeLazy {
            parameterNamesFor(

		return l, r, nil
	}

	// okfor allows any array == array, map == map, func == func.
	// restrict to slice/map/func == nil and nil == slice/map/func.
	if l.Type().IsArray() && !types.IsComparable(l.Type()) {
		base.Errorf("invalid operation: %v (%v cannot be compared)", n, l.Type())
		return l, r, nil
	}

	if l.Type().IsSlice() && !ir.IsNil(l) && !ir.IsNil(r) {

            } else if ((element instanceof Map) && flattenMaps) {
                flatten(((Map<?, ?>) element).values(), addTo, flattenMaps, flattenArrays);
            } else if (element.getClass().isArray() && flattenArrays) {
                flatten(asList((Object[]) element), addTo, flattenMaps, flattenArrays);
            } else {
                Cast.<Collection<Object>>uncheckedNonnullCast(addTo).add(element);
            }

     * @return an array of actual type arguments for a given {@link Type}
     */
    public static Type[] getActualTypeArguments(Type type) {
        if (type instanceof Class) {
            return ((Class<?>) type).isArray() ? new Type[] {((Class<?>) type).getComponentType()} : NO_TYPES;
        } else if (type instanceof ParameterizedType) {
            return ((ParameterizedType) type).getActualTypeArguments();

     *            配列の要素
     * @return 配列
     */
    public static Boolean[] asArray(final Boolean... elements) {
        return elements;
    }

    /**
     * {@literal Character}の配列を返します。
     *
     * @param elements
     *            配列の要素
     * @return 配列
     */
    public static Character[] asArray(final Character... elements) {
        return elements;
    }

    /**

            return processSet((Set<?>) value, visitor);
        }
        if (value instanceof Map) {
            return processMap((Map<?, ?>) value, visitor);
        }
        if (valueClass.isArray()) {
            return processArray(value, visitor);
        }
        if (value instanceof Attribute) {
            return visitor.attributeValue((Attribute<?>) value);
        }
        if (value instanceof Managed) {

            } else if ((element instanceof Map) && flattenMaps) {
                flatten(((Map<?, ?>) element).values(), addTo, flattenMaps, flattenArrays);
            } else if (element.getClass().isArray() && flattenArrays) {
                flatten(asList((Object[]) element), addTo, flattenMaps, flattenArrays);
            } else {
                Cast.<Collection<Object>>uncheckedNonnullCast(addTo).add(element);

    public TreeFormatter appendValue(@Nullable Object value) {
        // Implementation is currently dumb, can be made smarter
        if (value == null) {
            append("null");
        } else if (value.getClass().isArray()) {
            Class<?> componentType = value.getClass().getComponentType();
            if (componentType.isPrimitive()) {
                append(value.toString());
            } else {