final GenericArrayType genericArrayType = GenericArrayType.class.cast(type);
            final Class<?> rawClass = getRawClass(genericArrayType.getGenericComponentType());
            return Array.newInstance(rawClass, 0).getClass();
        }
        return null;
    }

    /**
     * <code>type</code>の型引数の配列を返します。
     * <p>
     * <code>type</code>が配列型の場合はその要素型(それが配列の場合はさらにその要素型)を対象とします。
     * </p>

                try (final InputStream is = new ByteArrayInputStream(pluginMetaContent.getBytes(Constants.UTF_8_CHARSET))) {
                    final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                    factory.setFeature(Constants.FEATURE_SECURE_PROCESSING, true);
                    factory.setFeature(Constants.FEATURE_EXTERNAL_GENERAL_ENTITIES, false);

    @Override
    final Object invokeInternal(@CheckForNull Object receiver, @Nullable Object[] args)
        throws InvocationTargetException, IllegalAccessException {
      try {
        return constructor.newInstance(args);
      } catch (InstantiationException e) {
        throw new RuntimeException(constructor + " failed.", e);
      }
    }

    /**

     * @return 配列
     */
    public V[] toArray(final V[] proto) {
        @SuppressWarnings("unchecked")
        final V[] array = proto.length >= size ? proto : (V[]) Array.newInstance(proto.getClass().getComponentType(), size);
        for (int i = 0; i < array.length; i++) {
            array[i] = getAt(i);
        }
        if (array.length > size) {
            array[size] = null;
        }

      @Override
      public void handlePotentialDeadlock(PotentialDeadlockException e) {}
    };
  }

  /** Creates a new factory with the specified policy. */
  public static CycleDetectingLockFactory newInstance(Policy policy) {
    return new CycleDetectingLockFactory(policy);
  }

  /** Equivalent to {@code newReentrantLock(lockName, false)}. */
  public ReentrantLock newReentrantLock(String lockName) {

   * stream.toArray()}; if {@code type} is a class literal such as {@code MyType.class}, use {@code
   * stream.toArray(MyType[]::new)}. Otherwise use {@code stream.toArray( len -> (E[])
   * Array.newInstance(type, len))}.
   *
   * @param type the type of the elements
   * @return a newly-allocated array into which all the elements of this fluent iterable have been
   *     copied
   */

      return pickInstance(rawType.getEnumConstants(), null);
    }
    if (type.isArray()) {
      TypeToken<?> componentType = requireNonNull(type.getComponentType());
      Object array = Array.newInstance(componentType.getRawType(), 1);
      Array.set(array, 0, generate(componentType));
      return array;
    }
    Method emptyGenerate = EMPTY_GENERATORS.get(rawType);
    if (emptyGenerate != null) {

   */
  @GwtIncompatible // reflection
  public @Nullable V[][] toArray(Class<V> valueClass) {
    @SuppressWarnings("unchecked") // TODO: safe?
    @Nullable
    V[][] copy = (@Nullable V[][]) Array.newInstance(valueClass, rowList.size(), columnList.size());
    for (int i = 0; i < rowList.size(); i++) {
      arraycopy(array[i], 0, copy[i], 0, array[i].length);
    }
    return copy;
  }

  /**

      return pickInstance(rawType.getEnumConstants(), null);
    }
    if (type.isArray()) {
      TypeToken<?> componentType = requireNonNull(type.getComponentType());
      Object array = Array.newInstance(componentType.getRawType(), 1);
      Array.set(array, 0, generate(componentType));
      return array;
    }
    Method emptyGenerate = EMPTY_GENERATORS.get(rawType);
    if (emptyGenerate != null) {

   * @param iterable the iterable to copy
   * @param type the type of the elements
   * @return a newly-allocated array into which all the elements of the iterable have been copied
   */
  @GwtIncompatible // Array.newInstance(Class, int)
  public static <T extends @Nullable Object> T[] toArray(
      Iterable<? extends T> iterable, Class<@NonNull T> type) {
    return toArray(iterable, ObjectArrays.newArray(type, 0));
  }