log.info("Invalidating cache");
log.debug("Invalidating cache");
    protected void invalidateCaches() {        log.info("Invalidating cache");        if (_cache!=null)            _cache.clear();        if (_systemCache!=null)            _systemCache.clear();        if (_significantKeysPerKey!=null)            _significantKeysPerKey.clear();        super.invalidateCaches();    }