private static boolean equalRows()

in core/src/main/java/org/apache/calcite/avatica/Meta.java [1153:1208]
45 lines of code
17 McCabe index (conditional complexity)

    private static boolean equalRows(Iterable<Object> rows, Iterable<Object> otherRows) {
      if (null == rows) {
        if (null != otherRows) {
          return false;
        }
      } else {
        Iterator<Object> iter1 = rows.iterator();
        Iterator<Object> iter2 = otherRows.iterator();
        while (iter1.hasNext() && iter2.hasNext()) {
          Object obj1 = iter1.next();
          Object obj2 = iter2.next();

          // Can't just call equals on an array
          if (obj1 instanceof Object[]) {
            if (obj2 instanceof Object[]) {
              // Compare array and array
              if (!Arrays.equals((Object[]) obj1, (Object[]) obj2)) {
                return false;
              }
            } else if (obj2 instanceof List) {
              // compare array and list
              @SuppressWarnings("unchecked")
              List<Object> obj2List = (List<Object>) obj2;
              if (!Arrays.equals((Object[]) obj1, obj2List.toArray())) {
                return false;
              }
            } else {
              // compare array and something that isn't an array will always fail
              return false;
            }
          } else if (obj1 instanceof List) {
            if (obj2 instanceof Object[]) {
              // Compare list and array
              @SuppressWarnings("unchecked")
              List<Object> obj1List = (List<Object>) obj1;
              if (!Arrays.equals(obj1List.toArray(), (Object[]) obj2)) {
                return false;
              }
            } else if (!obj1.equals(obj2)) {
              // compare list and something else, let it fall to equals()
              return false;
            }
          } else if (!obj1.equals(obj2)) {
            // Not an array, leave it to equals()
            return false;
          }
        }

        // More elements in one of the iterables
        if (iter1.hasNext() || iter2.hasNext()) {
          return false;
        }
      }

      return true;
    }