assertArgumentNotNull("method", method);

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

    /**
     * Returns the value type of the parameterized map declared as the method's return type.
     *
     * @param method

     * @return the value type of the map
     */
    public static Class<?> getValueTypeOfMap(final Field field) {
        assertArgumentNotNull("field", field);

        final Type type = field.getGenericType();
        return GenericsUtil.getRawClass(GenericsUtil.getValueTypeOfMap(type));
    }

        final Field f = ClassUtil.getField(Baz.class, "map");
        assertThat(FieldUtil.getKeyTypeOfMap(f), is(sameClass(String.class)));
        assertThat(FieldUtil.getValueTypeOfMap(f), is(sameClass(Integer.class)));
    }

    /**
     *
     */
    public static class Baz {

        /** */
        @SuppressWarnings("rawtypes")

     * </p>
     *
     * @param type
     *            the type to analyze
     * @return the value type of the map, or null if not a parameterized map
     */
    public static Type getValueTypeOfMap(final Type type) {
        if (!isTypeOf(type, Map.class)) {
            return null;
        }
        return getGenericParameter(type, 1);
    }

    /**