旧com.alibaba.dubbo版本：2.5.9
新org.apache.dubbo版本：2.7.17

问题：旧的dubbo中设置过期时间放在字段default.timeout中，但是新的版本是在timeout中直接取值，会导致在旧的版本中设置的超时时间无效
![image](https://user-images.githubusercontent.com/41528403/197443590-266cb768-b499-4a72-9a26-a78937575ee0.png)
![image](https://user-images.githubusercontent.com/41528403/197443452-677a7f06-f0dc-484b-bc4a-4a9eb97d4b70.png)
这样的情况该如何兼容？

Assertions.assertEquals("ccc", urlParam3.getParameter("aaa"));
        URLParam urlParam4 = urlParam1.addParameter("aaa", "aaa");
        Assertions.assertEquals("aaa", urlParam4.getParameter("aaa"));
        URLParam urlParam5 = urlParam1.addParameter("version", "0.1");
        Assertions.assertEquals("0.1", urlParam5.getParameter("version"));
        URLParam urlParam6 = urlParam5.addParameterIfAbsent("version", "0.2");
        Assertions.assertEquals("0.1", urlParam6.getParameter("version"));
        URLParam urlParam7 = urlParam1.addParameterIfAbsent("version", "0.2");
        Assertions.assertEquals("0.2", urlParam7.getParameter("version"));
        Map<String, String> map = new HashMap<>();
        map.put("version", "1.0");
        map.put("side", "provider");
        URLParam urlParam8 = urlParam1.addParameters(map);
        Assertions.assertEquals("1.0", urlParam8.getParameter("version"));
        Assertions.assertEquals("provider", urlParam8.getParameter("side"));
        map.put("side", "consumer");
        Assertions.assertEquals("provider", urlParam8.getParameter("side"));
        URLParam urlParam9 = urlParam8.addParameters(map);
        Assertions.assertEquals("consumer", urlParam9.getParameter("side"));
        URLParam urlParam10 = urlParam8.addParametersIfAbsent(map);
        Assertions.assertEquals("provider", urlParam10.getParameter("side"));
        Assertions.assertThrows(IllegalArgumentException.class,
                () -> urlParam1.addParameter("side", "unrecognized"));
    }
    @Test
    void testURLParamMap() {
        URLParam urlParam1 = URLParam.parse("");
        Assertions.assertTrue(urlParam1.getParameters().isEmpty());
        Assertions.assertEquals(0, urlParam1.getParameters().size());
        Assertions.assertFalse(urlParam1.getParameters().containsKey("aaa"));