private EvictionManager evictionManager;
protected DefaultDataContainer(int concurrencyLevel) {
immortalEntries = new ConcurrentHashMap<Object, InternalCacheEntry>(128, 0.75f, concurrencyLevel);
mortalEntries = new ConcurrentHashMap<Object, InternalCacheEntry>(64, 0.75f, concurrencyLevel);
entryFactory = new InternalEntryFactory();
evictionListener = null;
}