f2 = new FlowArrangement(
            HorizontalAlignment.RIGHT, VerticalAlignment.TOP, 1.0, 2.0
        );
        assertTrue(f1.equals(f2));

        f1 = new FlowArrangement(
            HorizontalAlignment.RIGHT, VerticalAlignment.BOTTOM, 1.0, 2.0
        );
        assertFalse(f1.equals(f2));