code: public Blob getBlob(int arg0) throws SQLException {
          try {
              Blob blob = rsetImpl.getBlob(arg0); 
              if (blob != null && freeResourcesOnClose)
                  blobs.add(blob); 
              return blob; 
          } catch (SQLException ex) {
              FFDCFilter.processException(ex, "com.ibm.ws.rsadapter.jdbc.WSJdbcResultSet.getBlob", "754", this);
              throw WSJdbcUtil.mapException(this, ex);
          } catch (NullPointerException nullX) {
              // No FFDC code needed; we might be closed.
              throw runtimeXIfNotClosed(nullX);
          }
      }
docs: Gets a BLOB value in the current row of this ResultSet object.
  
  @param i - the first column is 1, the second is 2, ...
  @return
  a Blob object representing the SQL BLOB value in the specified column.