> Hello Laurent,

> first of all thanks for developing this great library... it really makes
> life easier.

> I have made everything work great and I have been able to receive a JSON
> response from
> the REST service I am hitting... the problem is that I get a nullpointer
> exception because
> the Json does not get deserialized OR maybe because it does not get mapped
> to the
> Model.

> Here is some code:

> I am trying to deserialize this:

> {
>     "contracts": [
>         {
>             "id": 0,
>             "name": "whatever",
>             "epochs": [
>                 {
>                     "start": "2011-01-01T00:00:00Z",
>                     "end": "2011-12-31T00:00:00Z",
>                     "tariffs": [
>                         {
>                             "id": 0,
>                             "name": "t1",
>                             "cost": 20.0
>                         },
>                         {
>                             "id": 1,
>                             "name": "t2",
>                             "cost": 15.0
>                         }
>                     ]
>                 }
>             ]
>         }
>     ]}

> As you see there are many arrays so what I did was this:
> I created 3 different classes...
> Contracts
> Epochs
> Tariffs

> public class Contracts {

>     @JsonProperty("id")
>     public Long id;    
>     @JsonProperty("name")
>     public String name;    
>     @JsonProperty("epochs")
>     public List<Epochs> epochs;

>     public Long getId() {
>         return id;
>     }
>     public void setId(Long id) {
>         this.id = id;
>     }
>     public String getName() {
>         return name;
>     }
>     public void setName(String name) {
>         this.name = name;
>     }
>     public List<Epochs> getEpochs() {
>         return epochs;
>     }
>     public void setEpochs(List<Epochs> epochs) {
>         this.epochs = epochs;
>     }

> *************
> public class Epochs {

>     @JsonProperty("start")
>     public String startDate;
>     @JsonProperty("end")
>     public String endDate;    
>     @JsonProperty("tariffs")
>     public List<Tariffs> tariffs;

>     public String getStartDate() {
>         return startDate;
>     }
>     public void setStartDate(String startDate) {
>         this.startDate = startDate;
>     }
>     public String getEndDate() {
>         return endDate;
>     }
>     public void setEndDate(String endDate) {
>         this.endDate = endDate;
>     }
>     public List<Tariffs> getTariffs() {
>         return tariffs;
>     }
>     public void setTariffs(List<Tariffs> tariffs) {
>         this.tariffs = tariffs;
>     }

> *************

> public class Tariffs {

>     @JsonProperty("id")
>     public Long id;
>     @JsonProperty("name")
>     public String name;
>     @JsonProperty("cost")
>     public Float cost;

>     public Tariffs()
>     {

>     }

>     public Long getId() {
>         return id;
>     }

>     public void setId(Long id) {
>         this.id = id;
>     }

>     public String getName() {
>         return name;
>     }

>     public void setName(String name) {
>         this.name = name;
>     }

>     public Float getCost() {
>         return cost;
>     }

>     public void setCost(Float cost) {
>         this.cost = cost;
>     }

> }

> and then I have this on my interface

> @EndPoint("http://server.com")
> @Path("v2/{the.utility}")
> @HeaderParam(value = "Accept-Encoding", defaultValue = "gzip,deflate")
> @Consumes("application/json")
> @SocketTimeout(2000)
> @ConnectionTimeout(2000)
> @ResponseHandler(CustomResponse.class)
> public interface TheService{

>     @Path("contract")
>     public Contracts[] getContract();

> ************

> I call this like this:

>         CRest crest = CRest.basicAuth(username, password).
>                             placeholder("the.utility","util").
>                             build();

>         TheService api2 = crest.build(TheService.class);

>         Contracts[] contract = api2.getContract();

> After doing this ... no matter if I use [] or List...
> contract = null

> Can you please help me..
> Thank you very much
> Gustav