"The unix timestamp, in seconds, when Citadel root cert will expire. "+
			"A negative time indicates the cert is expired.",
	)
	rootCertExpirySeconds = monitoring.NewDerivedGauge(
		"citadel_server_root_cert_expiry_seconds",
		"The time remaining, in seconds, before the root certificate will expire. "+
			"A negative value indicates the cert is expired.",
	)
	certChainExpiryTimestamp = monitoring.NewGauge(

	es.workers.Store(&workers)
	globalExpiryState = es
	var wg sync.WaitGroup
	wg.Add(1)
	expired := make([]ObjectToDelete, 0, 5)
	go func() {
		defer wg.Done()
		workers := globalExpiryState.workers.Load()
		for t := range (*workers)[0] {
			if t, ok := t.(newerNoncurrentTask); ok {
				expired = append(expired, t.versions...)
			}
		}
	}()
	lc := lifecycle.Lifecycle{
		Rules: []lifecycle.Rule{
			{

    /*
     * (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();

        ['a', 'b'].each { file("$it/src/main/java/p/Type.java") << 'package p; class Type {}' }
    }

    def "expire worker daemons to free system memory"() {
        when:
        withDebugLogging()
        succeeds 'expireWorkers'

        then:
        outputContains 'Worker Daemon(s) expired to free some system memory'
    }

    def "worker daemons expiration can be disabled using a system property"() {

     * @throws Exception
     */
    public void testExpired() throws Exception {
        TimeoutTask task = TimeoutManager.getInstance().addTimeoutTarget(new TimeoutTarget() {
            public void expired() {
                System.out.println("expired");
                expiredCount++;
            }
        }, 1, true);

        assertNotNull(TimeoutManager.getInstance().thread);
        Thread.sleep(2000);

        runningThread = thread;
        running.set(true);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.seasar.extension.timer.TimeoutTarget#expired()
     */
    @Override
    public void expired() {
        int count = 0;
        while (running.get() && count < MAX_LOOP_COUNT) {
            if (logger.isDebugEnabled()) {
                logger.debug("Interrupt {}", runningThread);

//
// Before Go 1.23, the garbage collector did not recover
// timers that had not yet expired or been stopped, so code often
// immediately deferred t.Stop after calling NewTimer, to make
// the timer recoverable when it was no longer needed.
// As of Go 1.23, the garbage collector can recover unreferenced
// timers, even if they haven't expired or been stopped.
// The Stop method is no longer necessary to help the garbage collector.

	}()

	// Reset the timer.
	if needReset {
		q.timer.Reset(resetDuration)
	}
}

func (q *Queue) onTimerExpired() {
	// Collect all expired timers.
	q.mutex.Lock()
	handlers := q.heap.advanceTo(time.Now())
	q.mutex.Unlock()

	// Call the expired timer handlers.
	for _, h := range handlers {
		h()
	}

	// Reset the timer based on the earliest deadline.
	q.resetTimer()
}

			// The cert expires at 2017-08-24 19:00:40 +0000 UTC, so the grace period starts at 2017-08-24 07:00:40 +0000 UTC
			// The wait time is the duration from fake now to the grace period start time, which is 10h39s (36039s).
			cert:             testCert,
			now:              time.Date(2017, time.August, 23, 21, 0, 0, 40, time.UTC),
			expectedWaitTime: 36039,
		},
		"Cert expired": {
			// Now = 2017-08-25 21:00:40 +0000 UTC.

			},
			time:        now.Add(time.Hour * 2),
			expectedErr: "x509: certificate has expired or is not yet valid",
		},
		{
			name: "expired (past)",
			cert: &Certificate{
				SerialNumber: big.NewInt(1),
				DNSNames:     []string{"valid.testing.golang.invalid"},
				NotBefore:    now.Add(-time.Hour),
				NotAfter:     now.Add(time.Hour),