for (Method method : methods) {
      // Interfaces can have default methods that aren't abstract.
      // No need to verify them.
      // Can't check isDefault() for Android compatibility.
      if (!Modifier.isAbstract(method.getModifiers())) {
        continue;
      }
      // The interface could be package-private or private.
      // filter out equals/hashCode/toString
      if (method.getName().equals("equals")

  void doTestNulls(Class<?> cls, Visibility visibility)
      throws ParameterNotInstantiableException, IllegalAccessException, InvocationTargetException,
          FactoryMethodReturnsNullException {
    if (!Modifier.isAbstract(cls.getModifiers())) {
      nullPointerTester.testConstructors(cls, visibility);
    }
    nullPointerTester.testStaticMethods(cls, visibility);
    if (hasInstanceMethodToTestNulls(cls, visibility)) {

     */
    boolean isFinal();

    /**
     * {@literal abstract}メソッドの場合は{@literal true}を返します。
     *
     * @return {@literal abstract}メソッドの場合は{@literal true}
     */
    boolean isAbstract();

    /**
     * メソッドの引数型がパラメタ化された型の場合は{@literal true}を返します。
     *
     * @param index
     *            引数のインデックス
     * @return 引数型がパラメタ化された型の場合は{@literal true}
     */

      return createEmptyArray(type);
    }
    T jvmDefault = Defaults.defaultValue(Primitives.unwrap(type));
    if (jvmDefault != null) {
      return jvmDefault;
    }
    if (Modifier.isAbstract(type.getModifiers()) || !Modifier.isPublic(type.getModifiers())) {
      return arbitraryConstantInstanceOrNull(type);
    }
    final Constructor<T> constructor;
    try {
      constructor = type.getConstructor();

      return createEmptyArray(type);
    }
    T jvmDefault = Defaults.defaultValue(Primitives.unwrap(type));
    if (jvmDefault != null) {
      return jvmDefault;
    }
    if (Modifier.isAbstract(type.getModifiers()) || !Modifier.isPublic(type.getModifiers())) {
      return arbitraryConstantInstanceOrNull(type);
    }
    final Constructor<T> constructor;
    try {
      constructor = type.getConstructor();