public void testSerialization() {
        TextTitle t = new TextTitle("Title");
        XYTitleAnnotation a1 = new XYTitleAnnotation(1.0, 2.0, t);
        XYTitleAnnotation a2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(a1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            a2 = (XYTitleAnnotation) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(a1, a2);