code: public void setImplementors(Map<Class<?>, CloneImplementor> implementors) {
  		// this.implementors = implementors;
  
  		this.allImplementors = new HashMap<Class<?>, CloneImplementor>();
  		allImplementors.putAll(builtInImplementors);
  		allImplementors.putAll(implementors);
  	}
docs: Sets CloneImplementors to be used.
  @param implementors The implementors