java - class A declares multiple JSON fields -

i have class has private fields , same class extends class b has private fields in class a.

public class extends b {     private bigdecimal netamounttcy;     private bigdecimal netamountpcy;        private bigdecimal priceto;       private string segment;      private bigdecimal taxamounttcy;     private bigdecimal taxamountpcy;        private bigdecimal tradefeestcy;     private bigdecimal tradefeespcy;  // getter , setter above fields  } 

and class b has got private fiedls in class a

now when try create json string above class following exception :

class com.hexgen.ro.request.a declares multiple json fields named netamountpcy 

how fix this?

since private fields there should not problem while creating json string guess not sure.

i create json string following :

gson gson = new gson();  tempjson = gson.tojson(obj); 

here obj object of class a

since private fields there should not problem while creating json string

i don't think statement true, gson looks @ object's private fields when serializing, meaning private fields of superclass included, , when have fields same name throws error.

if there's particular field don't want include have mark transient keyword, eg:

private transient bigdecimal tradefeespcy;