Spring android JsonMappingException

[MaxGfeller]

Hi all

I started using the android rest template and i got a failure i dont understand.

RestTemplate tmpl = new RestTemplate();
        tmpl.setRequestFactory(new HttpComponentsClientHttpRequestFactory());
        List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
        messageConverters.add(new MappingJacksonHttpMessageConverter());
        tmpl.setMessageConverters(messageConverters);
        Task[] tr = tmpl.getForObject("http://10.1.201.167:3001/todo", Task[].class);

There i try to get these json objects into my Task array.

This class looks like this:

@JsonIgnoreProperties(ignoreUnknown = true)
public class Task  {

	private String _id;
	private String title;
	private String description;
	private Date createdAt;

	public Task() {
		super();
	}
	
	public Task(JsonParser parser, DeserializationContext ctx) {
		super();
	}
	
	public Task(String str, String a, String b, String c){
		super();
	}
	public Task(String id, String title, String description, Date createdAt){
		super();
	}
	@JsonProperty("_id")
	public String getId() {
		return _id;
	}
	@JsonProperty("_id")
	public void setId(String id) {
		_id = id;
	}
	@JsonProperty("created_at")
	public Date getCreatedAt() {
		return createdAt;
	}
	@JsonProperty("created_at")
	public void setCreatedAt(Date createdAt) {
		this.createdAt = createdAt;
	}
	@JsonProperty("title")
	public String getTitle() {
		return title;
	}
	@JsonProperty("title")
	public void setTitle(String title) {
		this.title = title;
	}
	@JsonProperty("description")
	public String getDescription() {
		return description;
	}
	@JsonProperty("description")
	public void setDescription(String description) {
		this.description = description;
	}
}

I always get a JsonMappingException: Can not construct instance of ch.company.android.Task, problem: no suitable creator method found to deserialize from Json String

What am i doing wrong?

Oh and none of these Constructors is called.

[onlinebuywatches]

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