@Test
public void testCreate() {

    LOG.info("testCreate");
    final int size = 100;
    final Map<String, Boolean> map = new HashMap<>(size);
    for (int i = 0; i < size; ++i) {
        final Uid<?> id = new Uid();
        LOG.info("UUID = {}", id);
        Assert.assertNull(map.put(id.toString(), true));
    }
    Assert.assertTrue(true);
}