docs: public static String getSql(Object jdbcWrapper) {
          if (jdbcWrapper instanceof WSJdbcPreparedStatement) // also includes WSJdbcCallableStatement
              return ((WSJdbcPreparedStatement) jdbcWrapper).sql;
          else if (jdbcWrapper instanceof WSJdbcResultSet)
              return ((WSJdbcResultSet) jdbcWrapper).sql;
          else
              return null;
      }