Need help with Java please.

Question 1. Consider a version of the LinkedList class of section 16.1 (from textbook) in which the addFirst method has been replaced with the following faulty version: public void addFirst(Object element) Node newNode - new Node(); first = newNode; newNode.data element newNode.next first; Develop a program ListTest with a test case that shows the error. That is, the program should print a failure/incorrect message with this implementation but not with the correct implementation