// Test round-trip
        HandleGuid guid3 = new HandleGuid(guid1.toBytes());
        assertEquals(guid1, guid3);
    }
    
    @Test
    public void testHandleInfoExpiration() {
        HandleInfo info = new HandleInfo(
            "/test/file.txt",
            new HandleGuid(),
            new byte[16],
            HandleType.DURABLE_V2,
            1000,  // 1 second timeout