/**
* Serialize an instance, restore it, and check for equality.
*/
public void testSerialization() {
LegendItemEntity e1 = new LegendItemEntity(
new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0)
);
LegendItemEntity e2 = null;
try {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(e1);
out.close();