return super.containsKey(key.toString());
if (ignoreCase) { return keyMap.containsKey(key.toString().toLowerCase()); } else { return super.containsKey(key.toString()); }
    public boolean containsKey(Object key) {        if ((System.currentTimeMillis() - lastCheck) > CACHE_TIME) {            update();        }        return super.containsKey(key.toString());    }