code: public void updateBlob(int columnIndex, java.sql.Blob b) throws SQLException { 
  
          try {
              rsetImpl.updateBlob(columnIndex, b);
          } catch (SQLException ex) {
              FFDCFilter.processException(ex, "com.ibm.ws.rsadapter.jdbc.WSJdbcResultSet.updateBlob", "4038", 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.Blob 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 b the new column value
  
  @exception SQLException If a database access error occurs