java - Jackson JSON processor problems -

i have been scratching head on hours :

jsckson deserializes b bombs on c below :

b , c both subclasses of a, , has setter getname. note uppercase n in name intentional, how json looks. deserializing c complains unrecognized field name name, b ok.

version 1.7.2

objectmapper mapper = new objectmapper(); mapper.getdeserializationconfig().addmixinannotations(b.class, mixin.class); string json = "{\"name\" : \"13\"}"; b b = m.readvalue(json, b.class); system.out.println(b.getname()); c c = m.readvalue(json, c.class); system.out.println(c.getname()); 

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 public class {     private int id ;     private string name;     public int getid() {         return id;     }     public void setid(int id) {         this.id = id;     }     public string getname() {         return name;     }     public void setname(string name) {         this.name = name;     } } 

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public class b extends { private string address;  public string getaddress() {     return address; }  public void setaddress(string address) {     this.address = address;     } } 

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 public class c extends {     private string country;      public string getcountry() {         return country;     }      public void setcountry(string country) {         this.country = country;     }  } 

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 @jsonautodetect(fieldvisibility = visibility.none,settervisibility=visibility.any)  abstract class mixin  {      @jsonproperty("name")     public abstract void setname(string name);      @jsonproperty("id")     public abstract void setid(int id);   } 

this because default json field name match setter called setname name, not name. java property name convention.

the deserialization works b because you've introduced mixin alters field name matches against setname.

can't introduce mixin c also?