java - JSON inner field parsing with GSON -

i new json , love how incredibly potent , straight-forward gson api can be, compared other parsing methods i've researched.
want parse rather complex json(using gson) resembles following 1 in terms of structure:

[   {     "name": "steve",   "age": 42,   "description": null,   "email1": "steve@example.com",   "email2": null,   "address1": {     "type": "home",     "shippingmethod": "charge quantity",     "street": "sunrise ave",     "streetno": 17      },    "address2": {     "type": "office",     "shippingmethod": null,     "street": "sunset ave",     "streetno": 71      },    "anotherfield": "another value"    },    {    "name": "johnny",    ...    "anotherfield": "some other value"    } ]   

i can see need wrap array of client objects, because json starts "[" , can see need container class inner fields address1 , address2. container came with:

public class client {   string name;   int age;   string description;   string email1;   string email2;   clientaddress address1;   clientaddress address2;   string anotherfield;   ..   getters() , setters()    public class clientaddress {     string type;     string shippingmethod;     string street;     int streetno;     ..     getters() , setters()   } } 

the instruction wrote grab data , populate wrapper fields is:

client[] clientsarray= (new gson()).fromjson(jsonclients, client[].class); 

the result partially satisfying; managed access primitive fields (such name,email1..), address1 , address2 fields both null. result,

clientsarray[i].getaddress1().getshippingmethod(); 

returns null string.

where did go wrong?
there particular way of creating classes missing?

note: json object valid structure standpoint of view. if see errors, it's because slipped when manually creating above dummy/demo.

just follow gson collections practices , try changing

 client[] clientsarray= (new gson()).fromjson(jsonclients, client[].class); 

to

 type collectiontype = new typetoken<list<client>>(){}.gettype();  list<client> clientsarray = (new gson()).fromjson(jsonclients, collectiontype);