liubao68 commented on issue #2081:
URL:
https://github.com/apache/servicecomb-java-chassis/issues/2081#issuecomment-734186595
补充问下， `我们接口定义的请求参数是List ，然后传个空，接收下来是[null]`, 这个你是怎么请求的？ 为用最新代码测试了下， 结果是空数组。
下面的测试用例是可以通过的：
```
@Path("queryListMULTI")
@GET
public String queryListMULTI(@ApiParam(collectionFormat = "multi")
@QueryParam("queryList") List<String> queryList) {
return queryList == null ? "null" : queryList.toString();
}
TestMgr.check("[]",
restTemplate.getForObject("cse://jaxrs/queryList/queryListMULTI?queryList=",
String.class));
```
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