public class MyClass {
    private long id;
    private String name;

    public MyClass() {}

    public MyClass (long id, String name) {
        this.id = id;
        this.name = name;
    }

    public long getId() {
        return this.id;
    }

    public String getName() {
        return this.name;
    }
}

public class MyResponseWrapper {
    private MyClass[] myClassArray;

    public MyResponseWrapper() {
        // this empty constructor is always being called
    }

    public MyResponseWrapper(MyClass[] myClassArray) {
        this.myClassArray = myClassArray;
    }

    public MyClass[] getMyClassArray() {
        return this.myClassArray;
    }
}

RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.set("Accept", "application/json");
HttpEntity<String> entity = new HttpEntity<>("parameters", headers);
ResponseEntity<MyResponseWrapper> res = restTemplate.exchange(url, HttpMethod.GET, entity, MyResponseWrapper.class);

{
   "authorities":[
      {
         "LocalAuthorityId":197,
         "LocalAuthorityIdCode":"760",
         "Name":"Aberdeen City",
         "FriendlyName":"aberdeen-city",
         "Url":"http://www.aberdeencity.gov.uk",
         "SchemeUrl":"",
         "Email":"commercial@aberdeencity.gov.uk",
         "RegionName":"Scotland",
         "FileName":"http://ratings.food.gov.uk/OpenDataFiles/FHRS760en-GB.xml",
         "FileNameWelsh":null,
         "EstablishmentCount":1847,
         "CreationDate":"2010-08-17T15:30:24.87",
         "LastPublishedDate":"2018-02-08T00:35:50.717",
         "SchemeType":2,
         "links":[
            {
               "rel":"self",
               "href":"http://api.ratings.food.gov.uk/authorities/197"
            }
         ]
      },
      {
         "LocalAuthorityId":198,
         "LocalAuthorityIdCode":"761",
         "Name":"Aberdeenshire",
         "FriendlyName":"aberdeenshire",
         "Url":"http://www.aberdeenshire.gov.uk/",
         "SchemeUrl":"",
         "Email":"environmental@aberdeenshire.gov.uk",
         "RegionName":"Scotland",
         "FileName":"http://ratings.food.gov.uk/OpenDataFiles/FHRS761en-GB.xml",
         "FileNameWelsh":null,
         "EstablishmentCount":2102,
         "CreationDate":"2010-08-17T15:30:24.87",
         "LastPublishedDate":"2018-02-24T00:34:15.547",
         "SchemeType":2,
         "links":[
            {
               "rel":"self",
               "href":"http://api.ratings.food.gov.uk/authorities/198"
            }
         ]
      },
      {
         "LocalAuthorityId":277,
         "LocalAuthorityIdCode":"323",
         "Name":"Adur",
         "FriendlyName":"adur",
         "Url":"http://www.adur-worthing.gov.uk",
         "SchemeUrl":"",
         "Email":"publichealth.regulation@adur-worthing.gov.uk",
         "RegionName":"South East",
         "FileName":"http://ratings.food.gov.uk/OpenDataFiles/FHRS323en-GB.xml",
         "FileNameWelsh":null,
         "EstablishmentCount":417,
         "CreationDate":"2010-08-17T15:30:24.87",
         "LastPublishedDate":"2018-02-28T00:36:33.987",
         "SchemeType":1,
         "links":[
            {
               "rel":"self",
               "href":"http://api.ratings.food.gov.uk/authorities/277"
            }
         ]
      },
      {
         "LocalAuthorityId":158,
         "LocalAuthorityIdCode":"055",
         "Name":"Allerdale",
         "FriendlyName":"allerdale",
         "Url":"http://www.allerdale.gov.uk",
         "SchemeUrl":"",
         "Email":"environmental.health@allerdale.gov.uk",
         "RegionName":"North West",
         "FileName":"http://ratings.food.gov.uk/OpenDataFiles/FHRS055en-GB.xml",
         "FileNameWelsh":null,
         "EstablishmentCount":1092,
         "CreationDate":"2010-08-17T15:30:24.87",
         "LastPublishedDate":"2018-02-28T00:33:58.31",
         "SchemeType":1,
         "links":[
            {
               "rel":"self",
               "href":"http://api.ratings.food.gov.uk/authorities/158"
            }
         ]
      },
      {
         "LocalAuthorityId":48,
         "LocalAuthorityIdCode":"062",
         "Name":"Amber Valley",
         "FriendlyName":"amber-valley",
         "Url":"http://www.ambervalley.gov.uk",
         "SchemeUrl":"",
         "Email":"envhealth@ambervalley.gov.uk",
         "RegionName":"East Midlands",
         "FileName":"http://ratings.food.gov.uk/OpenDataFiles/FHRS062en-GB.xml",
         "FileNameWelsh":null,
         "EstablishmentCount":972,
         "CreationDate":"2010-08-17T15:30:24.87",
         "LastPublishedDate":"2018-02-28T00:34:14.493",
         "SchemeType":1,
         "links":[
            {
               "rel":"self",
               "href":"http://api.ratings.food.gov.uk/authorities/48"
            }
         ]
      },
      {
         "LocalAuthorityId":334,
         "LocalAuthorityIdCode":"551",
         "Name":"Anglesey",
         "FriendlyName":"anglesey",
         "Url":"http://www.ynysmon.gov.uk",
         "SchemeUrl":"",
         "Email":"iechydyramgylchedd@ynysmon.gov.uk",
         "RegionName":"Wales",
         "FileName":"http://ratings.food.gov.uk/OpenDataFiles/FHRS551en-GB.xml",
         "FileNameWelsh":"http://ratings.food.gov.uk/OpenDataFiles/FHRS551cy-GB.xml",
         "EstablishmentCount":703,
         "CreationDate":"2010-08-17T15:30:24.87",
         "LastPublishedDate":"2018-02-28T00:34:28.853",
         "SchemeType":1,
         "links":[
            {
               "rel":"self",
               "href":"http://api.ratings.food.gov.uk/authorities/334"
            }
         ]
      }
   ],
   "meta":{
      "dataSource":"API",
      "extractDate":"2018-02-28T00:58:26.2673908+00:00",
      "itemCount":6,
      "returncode":"OK",
      "totalCount":6,
      "totalPages":1,
      "pageSize":6,
      "pageNumber":1
   },
   "links":[
      {
         "rel":"self",
         "href":"http://api.ratings.food.gov.uk/authorities"
      },
      {
         "rel":"first",
         "href":"http://api.ratings.food.gov.uk/authorities/1/6"
      },
      {
         "rel":"previous",
         "href":"http://api.ratings.food.gov.uk/authorities/1/6"
      },
      {
         "rel":"next",
         "href":"http://api.ratings.food.gov.uk/authorities/1/6"
      },
      {
         "rel":"last",
         "href":"http://api.ratings.food.gov.uk/authorities/1/6"
      }
   ]
}