assertEquals(int.class, TypeToken.of(int[].class).getComponentType().getType());
    assertEquals(long.class, TypeToken.of(long[].class).getComponentType().getType());
    assertEquals(float.class, TypeToken.of(float[].class).getComponentType().getType());
    assertEquals(double.class, TypeToken.of(double[].class).getComponentType().getType());
    assertThat(TypeToken.of(Object.class).getComponentType()).isNull();

    assertEquals(int.class, TypeToken.of(int[].class).getComponentType().getType());
    assertEquals(long.class, TypeToken.of(long[].class).getComponentType().getType());
    assertEquals(float.class, TypeToken.of(float[].class).getComponentType().getType());
    assertEquals(double.class, TypeToken.of(double[].class).getComponentType().getType());
    assertThat(TypeToken.of(Object.class).getComponentType()).isNull();

   * {@code <? extends Map<String, Integer>[]>} etc.), or else {@code null} is returned.
   */
  public final @Nullable TypeToken<?> getComponentType() {
    Type componentType = Types.getComponentType(runtimeType);
    if (componentType == null) {
      return null;
    }
    return of(componentType);
  }

  /**

   *
   * <p>The format is subject to change.
   */
  static String toString(Type type) {
    return (type instanceof Class) ? ((Class<?>) type).getName() : type.toString();
  }

  static @Nullable Type getComponentType(Type type) {
    checkNotNull(type);
    AtomicReference<@Nullable Type> result = new AtomicReference<>();
    new TypeVisitor() {
      @Override
      void visitTypeVariable(TypeVariable<?> t) {

        assertArgumentNotNull("array", array);

        final int length = array.length;
        @SuppressWarnings("unchecked")
        final T[] newArray = (T[]) Array.newInstance(array.getClass().getComponentType(), length + 1);
        System.arraycopy(array, 0, newArray, 0, length);
        newArray[length] = obj;
        return newArray;
    }

    /**

        }
      }
    }
    return null;
  }

  private static <T> T createEmptyArray(Class<T> arrayType) {
    // getComponentType() is non-null because we call createEmptyArray only with an array type.
    return arrayType.cast(Array.newInstance(requireNonNull(arrayType.getComponentType()), 0));
  }

  // Internal implementations of some classes, with public default constructor that get() needs.

        }
      }
    }
    return null;
  }

  private static <T> T createEmptyArray(Class<T> arrayType) {
    // getComponentType() is non-null because we call createEmptyArray only with an array type.
    return arrayType.cast(Array.newInstance(requireNonNull(arrayType.getComponentType()), 0));
  }

  // Internal implementations of some classes, with public default constructor that get() needs.

     */
    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;
        }
        return array;

              rootLocaleFormat(
                  "%s.%s() must return an array of %s.",
                  annotationClass, propertyName, annotationClass.getDeclaringClass()))
          .that(returnType.getComponentType())
          .isEqualTo(annotationClass.getDeclaringClass());
    }
  }

  // This is public so that tests for Feature enums we haven't yet imagined
  // can reuse it.

              rootLocaleFormat(
                  "%s.%s() must return an array of %s.",
                  annotationClass, propertyName, annotationClass.getDeclaringClass()))
          .that(returnType.getComponentType())
          .isEqualTo(annotationClass.getDeclaringClass());
    }
  }

  // This is public so that tests for Feature enums we haven't yet imagined
  // can reuse it.