public static long getMaxCacheLifetime(String cacheName) {
        return getCacheProperty(cacheName, PROPERTY_SUFFIX_MAX_LIFE_TIME, DEFAULT_MAX_CACHE_LIFETIME);
    }
If a local property is found for the supplied name which specifies a value for cache entry lifetime, it
is returned. Otherwise, the defaultLifetime argument is returned.

@param cacheName the name of the cache to look up a corresponding property for.
@return either the property value or the default value.
xmppserver/src/main/java/org/jivesoftware/util/cache/CacheFactory.java