code: @Override
      public DBConnection stage1ConnectKAMStore(String jdbcUrl, String user,
              String pass) throws DBConnectionFailure {
          try {
              return ds.dbConnection(jdbcUrl, user, pass);
          } catch (SQLException e) {
              // rethrow as fatal exception since we couldn't connect to KAMStore
              throw new DBConnectionFailure(jdbcUrl, e.getMessage(), e);
          }
      }
docs: {@inheritDoc}