All works fine using the 'XYBarRenderer' but when two series overlap, one gets on top of the other. So that is why I want to use the 'StackedXYBarRenderer' but I get an java.lang.ClassCastException org.jfree.data.xy.XYBarDataset in StackedXYBarRenderer.findRangeBounds

Please advise,
Regards Peter
{with jfreechart 1.0.13}