如何使用DTO对象检查Json数组的大小？

Question

我需要获得＆＃34;描述＆＃34;的大小。数组，转换为对象dto。我需要放心，如果我的阵列＆＃34;描述＆＃34;内部至少包含1个元素。我怎么做？ 我的Json

{
"success": true,
"description": [
    {
        "a": "xxx",
        "a": 5,
        "a": "xxx",
        "a": "xx",
        "aaa": [
            {
                "b": 247,
                "b": "BR",
                "b": "CPF",
                "b": 3
            }
        ],
        "ccc": 3
    }
]
}

我的代码

public class Name extends Base {
private final String UrlString= "resource";

@Test
public void teste() {
    ResponseDTO responseDTO = given()
            .contentType(ContentType.JSON)

            .headers("utoken", utoken)
            .pathParam("name",name)

            .when()
            .get(UrlString)
            .then()
            .statusCode(is(statusok))
            .extract().as(ResponseDTO.class);
            validade(responseDTO);

}

public void validade(ResponseDTO responseDTO) {
    assertTrue(responseDTO.isSuccess());
}

我的DTO

public class ResponseDTO {

  private boolean success;
  private List description;

  getters/setters
}