assertEquals("2", paramMap.get("a")[1]);
        assertEquals("2", paramMap.get("b")[0]);
        assertEquals("3", paramMap.get("c")[0]);

    }

    public void test_missing() throws IOException {
        final EncodingFilter filter = new EncodingFilter();
        Map<String, String[]> paramMap;

        paramMap = filter.parseQueryString("a=", "UTF-8");
        assertEquals(1, paramMap.size());