code: public void updateRef(int columnIndex, java.sql.Ref r) throws SQLException { 
          try {
              rsetImpl.updateRef(columnIndex, r);
          } catch (SQLException ex) {
              FFDCFilter.processException(ex, "com.ibm.ws.rsadapter.jdbc.WSJdbcResultSet.updateRef", "4152", this);
              throw WSJdbcUtil.mapException(this, ex);
          } catch (NullPointerException nullX) {
              // No FFDC code needed; we might be closed.
              throw runtimeXIfNotClosed(nullX);
          }
      }
docs: <p>Updates the designated column with a java.sql.Ref value. The updater methods
  are used to update column values in the current row or the insert row. The updater
  methods do not update the underlying database; instead the updateRow or insertRow
  methods are called to update the database. </p>
  
  @param columnIndex the first column is 1, the second is 2, ...
  @param r the new column value
  
  @excpetion SQLException If a database access error occurs