assertFalse(plot1.equals(plot2));
plot2.setAutoPopulateSectionOutlineStroke(true);
assertEquals(plot1, plot2);
// shadowGenerator
plot1.setShadowGenerator(new DefaultShadowGenerator(5, Color.gray,
0.6f, 4, -Math.PI / 4));
assertFalse(plot1.equals(plot2));
plot2.setShadowGenerator(new DefaultShadowGenerator(5, Color.gray,
0.6f, 4, -Math.PI / 4));
assertEquals(plot1, plot2);
plot1.setShadowGenerator(null);
assertFalse(plot1.equals(plot2));