java - deserialize arrayList of objects in jakson -

currently facing problem how de serialize list of objects in json format pojo. in works using jersey rest service can consume json. how can de-serialize rest request json object having array of objects .

json array

{     "subject": "hi",     "description": [         {             "subject": "hi"         },         {             "subject": "hi"         }     ] } 

my pojo class

public class t {      private string subject;     private list<t2> description;      public string getsubject() {         return subject;     }      public void setsubject(string subject) {         this.subject = subject;     }      public list<t2> getdescription() {         return description;     }      public void setdescription(list<t2> description) {         this.description = description;     }  } 

t2.class

public class t2 {     private string subject;      public string getsubject() {         return subject;     }      public void setsubject(string subject) {         this.subject = subject;     } } 

use typereference. eg:

import java.io.ioexception;  import com.fasterxml.jackson.core.jsonparseexception; import com.fasterxml.jackson.core.type.typereference; import com.fasterxml.jackson.databind.jsonmappingexception; import com.fasterxml.jackson.databind.objectmapper;   public class jacksonparser {      public static void main(string[] args) {         t data = null;         string json = "{\"subject\":\"hi\",\"description\":[{\"subject\":\"hi\"},{\"subject\":\"hi\"}]}";         objectmapper mapper = new objectmapper();         try {             data = mapper.readvalue(json, new typereference<t>() { });         } catch (jsonparseexception e) {             system.out.println(e.getmessage());         } catch (jsonmappingexception e) {             system.out.println(e.getmessage());         } catch (ioexception e) {             system.out.println(e.getmessage());         }         system.out.println(data);     }  }