code: @Override
      public final DataSource getNonJtaDataSource() {
          if (ivNonJtaDataSource == null || ivNonJtaDataSource instanceof GenericDataSource) { // d455055
              ivNonJtaDataSource = getJPADataSource(ivNonJtaDataSourceJNDIName);
          }
          return ivNonJtaDataSource;
      }
docs: (non-Javadoc)
  
  @see javax.persistence.spi.PersistenceUnitInfo#getNonJtaDataSource()