json - Converting List<object> to JSONArray using java -

im using java play2 framework 2.3.x , ebean orm when try convert beanlist jsonarray/jsonnode takes more time using arraylist created looping on beanlist , added arraylist, lets when time taken convert arraylist x, beanlist takes 3x.

public class mybean extends model {     private string name;     public string getname() {         return this.name;     }     public void setname(string name) {         this.name = name;     }  } 

when

list<mybean> mybean =  mybean.find.all();//will return beanlist<device> jsonarray mybeanjsonlist = new jsonarray(mybean); 

or

jsonnode mybeanlist = json.tojson(mybean); 

takes more time looping on beanlist , add object in arraylist

    list<mybean> mybean =  mybean.find.all();//will return beanlist<device>     list<mybean> mybeanlist = new arraylist<device>();      for(mybean d : mybean)     {         mybean mybeantemp = new mybean();         mybeantemp.setname(d.getname());         mybeanlist.add(mybeantemp);     }      jsonarray mybeanjsonlist = new jsonarray(mybeanlist); 

or

    jsonnode mybeanjsonlist = json.tojson(mybeanlist); 

is normal behavior?