Tooltip not coming up within Chart in Dyanmic Reports

public class BarChartReportExecutiveSummaryExample {
 
    /**
     * <p>Constructor for BarChartReport.</p>
     */
    public BarChartReportExecutiveSummaryExample() {
        build();
    }
 
    /**
     * <p>main.</p>
     *
     * @param args an array of {@link String} objects.
     */
    public static void main(String[] args) {
        new BarChartReportExecutiveSummaryExample();
    }
 
    private void build() {
        FontBuilder boldFont = stl.fontArialBold().setFontSize(12);
 
        TextColumnBuilder<String> itemColumn = col.column("Item", "item", type.stringType());
        TextColumnBuilder<Integer> quantityColumn = col.column("Quantity", "quantity", type.integerType());
        TextColumnBuilder<BigDecimal> unitPriceColumn = col.column("Unit price", "unitprice", type.bigDecimalType());
 
        try {
            BarChartBuilder barChartBuilder1 = cht.barChart()
                    .setTitle("Bar chart")
                    .customizers(new ExecutiveSummaryChartCustomizer())
                    .setOrientation(Orientation.HORIZONTAL)
                    .setFixedHeight(300)
                    .setFixedWidth(300)
                    .setTitleFont(boldFont)
                    .setCategory(itemColumn)
                    .series(cht.serie(quantityColumn), cht.serie(unitPriceColumn))
                    .setCategoryAxisFormat(cht.axisFormat().setLabel("Item"));
 
            report().setTemplate(Templates.reportTemplate)
                    .setPageFormat(950,900,PageOrientation.PORTRAIT)
                    .title(Templates.createTitleComponent("BarChart"))
                    .summary(cmp.horizontalList(barChartBuilder1))
                    .pageFooter(Templates.footerComponent)
                    .setDataSource(createDataSource())
                    .toPdf(new FileOutputStream("C:\\Work\\BotSinkMR2Branch963\\BotSink\\main\\src\\user_interface\\Configurator\\dist\\test.pdf"))
                    .show();
 
        } catch (DRException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
 
    private JRDataSource createDataSource() {
        DRDataSource dataSource = new DRDataSource("item", "quantity", "unitprice");
        dataSource.add("Tablet", 350, new BigDecimal(300));
        dataSource.add("Laptop", 300, new BigDecimal(500));
        dataSource.add("Smartphone", 450, new BigDecimal(250));
        return dataSource;
    }
 
    public static class ExecutiveSummaryChartCustomizer implements DRIChartCustomizer, Serializable {
        private static final long serialVersionUID = 1L;
        @Override
        public void customize(JFreeChart chart, ReportParameters reportParameters) {
            BarRenderer renderer = (BarRenderer) chart.getCategoryPlot().getRenderer();
            renderer.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator());
 
            renderer.setBaseCreateEntities(true);
            renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
            renderer.setBaseItemLabelsVisible(true);
        }
    }
}