code: public final static boolean arrayEquals(Object[] source, Object target) {
          if (source == null) return (target == null);
          if (!(target instanceof Object[])) return false;
          Object[] targ = (Object[]) target;
          return (source.length == targ.length
                  && arrayRegionMatches(source, 0, targ, 0, source.length));
      }
docs: Convenience utility to compare two Object[]s.
  Ought to be in System