public void testSerialization2() {
        MeterPlot p1 = new MeterPlot(new DefaultValueDataset(1.23));
        MeterPlot p2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(p1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                     new ByteArrayInputStream(buffer.toByteArray()));
            p2 = (MeterPlot) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(p1, p2);