BarRenderer r = new BarRenderer();
assertEquals(Color.gray, r.getDefaultOutlinePaint());
// first check that autoPopulate==false works as expected
r.setAutoPopulateSeriesOutlinePaint(false);
assertEquals(Color.gray, r.lookupSeriesOutlinePaint(0));
assertNull(r.getSeriesOutlinePaint(0));
// now check autoPopulate==true
r.setAutoPopulateSeriesOutlinePaint(true);
/*CategoryPlot plot =*/ new CategoryPlot(null, new CategoryAxis(