Shaw

for a handle class contains another handle object. I would do deep copy "recursively". (the following one might face the loop situation.)

classdef B < handle
    properties
        a % A obj
    end
    methods
     function this = B()
            this.a = A();
     end
  
     % class A should have the SIMILAR
     % clonePublic function
     function newObj = clonePublic(this)
       props = properties(this);
       newObj = B();
       for i = 1: length(props)
         tmp = this.(props{i});
         if(isa(tmp,'handle'))
           newObj.(props{i}) = tmp.clonePublic();
         else
           newObj.(props{i}) = tmp ;
          end
        end
     end
    end
end