One of your co-workers is working on a re-posting feature (user posts someone else's post under their account). It includes the code below. Describe what design problems are created by this implementation. public abstract class Post { private Group mGroup; private User mPostedUser; public Group getGroup(){ return mGroup; } public User getPostedUser() { return mPostedUser ]; public class RePost extends Post { private Post mRepost; public String getPostedUser() { return mRepost.getPostedUser()