Answer the question about the program public int findLast (int[] x, int y) //Effects: If x==null throw NullPointerException // else return the index of the last element // in x that equals y. // If no such element exists, return -1 for (int i=x.length-1; i > 0; i--) { if (x[i] == y) { } return i } return -1; } // test: x=[2, 3, 5]: y = 2 // Expected = 0 Which test case does not execute the fault?