code: public static void reverse(final Object[] a) {
          if (N.isNullOrEmpty(a)) {
              return;
          }
  
          reverse(a, 0, a.length);
      }
docs: <p>
  Reverses the order of the given array.
  </p>
  
  <p>
  There is no special handling for multi-dimensional arrays.
  </p>
  
  @param a