code: public static <T> T getElementAt(T[] array, int index) {
      return getElementAt(array, index, null);
    }
docs: Returns the element at the given index in the {@code array}.
  
  @param <T> {@link Class} type of elements in the array.
  @param array array from which to extract the given element at index.
  @param index integer indicating the index of the element in the array to return.
  @return the element at the given index in the array.
  @see #getElementAt(Object[], int, Object)