## List of metrics exposed by MinIO

- MinIO exports Prometheus compatible data by default as an authorized endpoint at `/minio/v2/metrics/cluster`. 

        });

        verify(mockManager, never()).completeReconnect(anyString(), anyBoolean());
    }

    @Test
    public void testReconnectExpiredHandle() throws Exception {
        // Create an expired handle
        HandleInfo expiredHandle = new HandleInfo("/test/file.txt", new HandleGuid(), new byte[16], HandleType.DURABLE_V2, 100, // 100ms timeout
                null);

        // Wait for expiration

        assertEquals("", blob.toString(), "toString() should be empty after set(null)");
    }

    // Verifies constructor stores the exact array reference and exposes it via get()
    @Test
    @DisplayName("Constructor stores and exposes same array reference")
    void constructor_and_get_referenceSemantics() {
        // Arrange
        byte[] data = new byte[] { (byte) 0xDE, (byte) 0xAD, (byte) 0xBE, (byte) 0xEF };

    ticker.advance(EXPIRING_TIME * 10, MILLISECONDS);

    // add a single unexpired entry
    cache.getUnchecked(KEY_PREFIX + 11);

    // collections views shouldn't expose expired entries
    assertEquals(1, Iterators.size(cache.asMap().entrySet().iterator()));
    assertEquals(1, Iterators.size(cache.asMap().keySet().iterator()));
    assertEquals(1, Iterators.size(cache.asMap().values().iterator()));

    }

    public void test_expired_method_exists() throws Exception {
        assertNotNull("expired method should exist", HotThreadMonitorTarget.class.getMethod("expired"));
    }

    public void test_expired_method_can_be_called() {
        try {
            target.expired();
        } catch (Exception e) {
            // Expected that it may fail due to missing dependencies in test environment

        // After update, should not be expired with long timeout
        assertFalse(registration.isExpired(60000));

        // Verify heartbeat was actually updated
        assertTrue(registration.getLastHeartbeat() > initialTime);
    }

    @Test
    void testExpiration() throws InterruptedException {
        // Registration should not be expired initially with long timeout

    }

    @Test
    @DisplayName("getSession returns underlying session from tree connection")
    void getSessionReturnsUnderlying() {
        // Verifies getSession() exposes the session provided by the connection
        assertSame(session, handle.getSession());
        verify(treeConnection).getSession();
    }

    @Test

        t.setMechanismToken(data);
        assertArrayEquals(data, t.getMechanismToken(), "mechanismToken should round-trip");

        // Document current behavior: no defensive copy (reference exposed)
        data[0] = 9;
        assertEquals(9, t.getMechanismToken()[0], "no defensive copy; reflects external mutation");
    }

    @Test
    @DisplayName("Setter and getter for mechanismListMIC work")

        assertEquals(Integer.valueOf(3600), defaultExpire);
    }

    // Test cookie cipher
    public void test_provideCookieCipher() {
        // provideCookieCipher is not directly exposed anymore
        // Testing through cookie spec creation instead
        // CookieSpec is not directly available for testing
        assertNotNull(cookieResourceProvider);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.seasar.extension.timer.TimeoutTarget#expired()
     */
    @Override
    public void expired() {
        if (clientConnectionManager == null) {
            logger.warn("clientConnectionManager is null.");
            return;
        }

        try {
            // Close expired connections
            clientConnectionManager.closeExpiredConnections();