code: import org.jfree.chart.ChartRenderingInfo;
  import org.jfree.chart.entity.AxisLabelEntity;
  import org.jfree.chart.entity.EntityCollection;
  import org.jfree.chart.plot.PlotRenderingInfo;
  
  class CheckForNoOwner {
    void pattern(PlotRenderingInfo plotState, AxisLabelEntity someEntity) {
      ChartRenderingInfo owner = plotState.getOwner();
      if (owner != null) {
        EntityCollection entities = owner.getEntityCollection();
        if (entities != null) {
          entities.add(someEntity);
        }
      }
    }
  }
  