* useful in testing, or to disable caching temporarily without a code change.
   *
   * <p>Expired entries may be counted in {@link Cache#size}, but will never be visible to read or
   * write operations. Expired entries are cleaned up as part of the routine maintenance described
   * in the class javadoc.
   *

            changeNotifier.stopWatching(path);
        }

        // Clear caches
        directoryCache.clear();
        leaseToPath.clear();
    }

    /**
     * Clean up expired cache entries
     */
    private void cleanupExpiredEntries() {
        List<String> expiredPaths = new ArrayList<>();

        for (Map.Entry<String, DirectoryCacheEntry> entry : directoryCache.entrySet()) {

	AmzFwdHeaderDeleteMarker       = "x-amz-fwd-header-x-amz-delete-marker"
	AmzFwdHeaderETag               = "x-amz-fwd-header-ETag"
	AmzFwdHeaderExpires            = "x-amz-fwd-header-Expires"
	AmzFwdHeaderExpiration         = "x-amz-fwd-header-x-amz-expiration"
	AmzFwdHeaderLastModified       = "x-amz-fwd-header-Last-Modified"

	AmzFwdHeaderObjectLockMode        = "x-amz-fwd-header-x-amz-object-lock-mode"

{"index":{"_index":"fess_config.scheduled_job","_id":"thumbnail_purger"}}
{"name":"Thumbnail Purger","target":"all","cronExpression":"0 0 * * *","scriptType":"groovy","scriptData":"return container.getComponent(\"purgeThumbnailJob\").expiry(30 * 24 * 60 * 60 * 1000L).execute();","jobLogging":true,"crawler":false,"available":true,"sortOrder":7,"createdBy":"system","createdTime":0,"updatedBy":"system","updatedTime":0}

	stsEndpoint string

	// token to use with AssumeRoleWithCustomToken
	token string

	// Role ARN to use
	roleArn string

	// Display credentials flag
	displayCreds bool

	// Credential expiry duration
	expiryDuration time.Duration

	// Bucket to list
	bucketToList string
)

func init() {
	flag.StringVar(&stsEndpoint, "sts-ep", "http://localhost:9000", "STS endpoint")

				}
				if !oauth2Token.Valid() {
					return nil, errors.New("invalid token")
				}

				return &credentials.WebIdentityToken{
					Token:  oauth2Token.Extra("id_token").(string),
					Expiry: int(oauth2Token.Expiry.Sub(time.Now().UTC()).Seconds()),
				}, nil
			}
		}

		sts, err := credentials.NewSTSWebIdentity(stsEndpoint, getWebTokenExpiry)
		if err != nil {

			objInfo := fi.ToObjectInfo(bucket, object, versioned)

			evt := evalActionFromLifecycle(ctx, *lc, lr, rcfg, objInfo)
			switch {
			case evt.Action.DeleteRestored(): // if restored copy has expired,delete it synchronously
				applyExpiryOnTransitionedObject(ctx, newObjectLayerFn(), objInfo, evt, lcEventSrc_Heal)
				return false
			case evt.Action.Delete():

Podrías cargarlo en el nivel superior del módulo/archivo, pero eso también significaría que **cargaría el modelo** incluso si solo estás ejecutando una simple prueba automatizada, entonces esa prueba sería **lenta** porque tendría que esperar a que el modelo se cargue antes de poder ejecutar una parte independiente del código.

            if (tokenExpiryTime < currentTime) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Token expired: expiryTime={}, currentTime={}", tokenExpiryTime, currentTime);
                }
                return false;
            }
            // Attempt to refresh token using MSAL4J silent authentication
            try {

	// even if updating the value errors out.
	// Returns the last good value AND the error.
	ReturnLastGood bool

	// If NoWait is set, Get() will return the last good value,
	// if TTL has expired but 2x TTL has not yet passed,
	// but will fetch a new value in the background.
	NoWait bool
}

// Cache contains a synchronized value that is considered valid
// for a specific amount of time.