code: @Override
    public boolean checkAndMutate(final byte[] row, final byte[] family, final byte[] qualifier,
        final CompareOperator compareOp, final byte[] value, final RowMutations rm)
        throws IOException {
      return super.checkAndMutate(row, family, qualifier, toCompareOp(compareOp), value, rm);
    }
docs: {@inheritDoc}