}

    @Override
    Type getGenericReturnType() {
      return method.getGenericReturnType();
    }

    @Override
    Type[] getGenericParameterTypes() {
      return method.getGenericParameterTypes();
    }

    @Override
    Type[] getGenericExceptionTypes() {
      return method.getGenericExceptionTypes();
    }

    @Override

      ParameterizedType parameterType =
          (ParameterizedType)
              WithWildcardType.class.getDeclaredMethod(methodName, List.class)
                  .getGenericParameterTypes()[0];
      return (WildcardType) parameterType.getActualTypeArguments()[0];
    }
  }

  public void testNewWildcardType() throws Exception {

      ParameterizedType parameterType =
          (ParameterizedType)
              WithWildcardType.class.getDeclaredMethod(methodName, List.class)
                  .getGenericParameterTypes()[0];
      return (WildcardType) parameterType.getActualTypeArguments()[0];
    }
  }

  public void testNewWildcardType() throws Exception {

     */
    public static Class<?> getElementTypeOfCollectionFromParameterType(final Method method, final int position) {
        assertArgumentNotNull("method", method);

        final Type[] parameterTypes = method.getGenericParameterTypes();
        return GenericsUtil.getRawClass(GenericsUtil.getElementTypeOfCollection(parameterTypes[position]));
    }

    /**
     * 指定されたメソッドの戻り値型として宣言されているパラメタ化されたコレクションの要素型を返します。
     *

        final Map<TypeVariable<?>, Type> map = GenericsUtil.getTypeVariableMap(Hoge.class);

        Method method = Hoge.class.getMethod("foo", Object.class);
        assertThat(GenericsUtil.getActualClass(method.getGenericParameterTypes()[0], map), is(sameClass(Integer.class)));
        assertThat(GenericsUtil.getActualClass(method.getGenericReturnType(), map), is(sameClass(Long.class)));

        method = Hoge.class.getMethod("array");

      ParameterizedType parameterType =
          (ParameterizedType)
              WithGenericBound.class.getDeclaredMethod(methodName, List.class)
                  .getGenericParameterTypes()[0];
      parameterType =
          (ParameterizedType) TypeToken.of(this.getClass()).resolveType(parameterType).getType();
      return parameterType.getActualTypeArguments()[0];
    }
  }

      ParameterizedType parameterType =
          (ParameterizedType)
              WithGenericBound.class.getDeclaredMethod(methodName, List.class)
                  .getGenericParameterTypes()[0];
      parameterType =
          (ParameterizedType) TypeToken.of(this.getClass()).resolveType(parameterType).getType();
      return parameterType.getActualTypeArguments()[0];
    }
  }