@Test()
public void testSerialNumHashcode()
{

    UUID id = UUID.randomUUID();
    short rev = 53;
    SerialNum sn1 = new SerialNum(id, rev);
    SerialNum sn2 = new SerialNum(id, rev);
    assertThat(sn1.hashCode(), is(equalTo(sn2.hashCode())));
}