package p; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; class A{ List<String> items= new ArrayList<String>(); public List<String> getItems() { return items; } public void setItems(List<String> list) { this.items= list; } } class B { static { A a= new A(); a.setItems(new LinkedList<String>()); List<String> list= a.getItems(); list.addAll(a.items); } }