Method m = Baz.class.getMethod("rawMap", Map.class);
        assertThat(MethodUtil.getKeyTypeOfMapFromParameterType(m, 0), is(nullValue()));

        m = Baz.class.getMethod("genericMap", Map.class);
        assertThat(MethodUtil.getKeyTypeOfMapFromParameterType(m, 0), is(sameClass(Integer.class)));
    }

    /**
     * @throws Exception
     */
    @Test

        DocMap docMap = new DocMap(parentMap);

        assertTrue(docMap instanceof Map);
        assertTrue(docMap instanceof Map<?, ?>);

        Map<String, Object> genericMap = docMap;
        genericMap.put("test", "value");
        assertEquals("value", genericMap.get("test"));
    }