code: protected void fillStatement(PreparedStatement stmt, Object[] params)
          throws SQLException {
  
          fillStatement(stmt, params, null);
      }
docs: Fill the <code>PreparedStatement</code> replacement parameters with
  the given objects.
  @param stmt PreparedStatement to fill
  @param params Query replacement parameters; <code>null</code> is a valid
  value to pass in.
  @throws java.sql.SQLException if a database access error occurs