com.google.gson.internal.LinkedTreeMap无法转换为对象

Question

我已经创建了以下restful jersy客户端返回的对象数组，它可以工作，但它返回字符串值，我已将其更改为hgson但在此行中收到以下错误

ScoreRouteRulefile scoreRouteRulefile=scoreRouteRulefiles.get(i);

java.lang.ClassCastException：com.google.gson.internal.LinkedTreeMap无法强制转换为com.innvo.drools.ScoreRouteRulefile

        Client client = Client.create();
        WebResource webResource = client
           .resource("http://localhost:8080/adap/api/getQuery/"+filterId);
        ClientResponse response = webResource.accept("application/json")
                   .get(ClientResponse.class);

        String output =  response.getEntity(String.class);

        Type listType = new TypeToken<List>() {}.getType();

        List<ScoreRouteRulefile> scoreRouteRulefiles = new Gson().fromJson(output, listType);

         for(int i=0;i<scoreRouteRulefiles.size();i++){
            ScoreRouteRulefile scoreRouteRulefile=scoreRouteRulefiles.get(i);
        }