});

        assertThrows(IllegalArgumentException.class, () -> {
            new HandleGuid(new byte[20]); // Wrong length
        });
    }

    @Test
    public void testHandleGuidEqualsAndHashCode() {
        UUID uuid = UUID.randomUUID();
        HandleGuid guid1 = new HandleGuid(uuid);
        HandleGuid guid2 = new HandleGuid(uuid);
        HandleGuid guid3 = new HandleGuid();