protected JFreeChart createStackedBar3DChart() throws JRException { JFreeChart jfreeChart = super.createStackedBar3DChart(); CategoryPlot categoryPlot = (CategoryPlot) jfreeChart.getPlot(); BarRenderer3D barRenderer3D = (BarRenderer3D) categoryPlot.getRenderer(); barRenderer3D.setWallPaint(ChartThemesConstants.TRANSPARENT_PAINT); barRenderer3D.setItemMargin(0); CategoryDataset categoryDataset = categoryPlot.getDataset(); if (categoryDataset != null) { for (int i = 0; i < categoryDataset.getRowCount(); i++) { barRenderer3D.setSeriesOutlinePaint(i, ChartThemesConstants.TRANSPARENT_PAINT); } } return jfreeChart; }