@Override
    public Object get(String region, String key) {
        Map<String, Object> cacheRegion = getRegion(region);
        return cacheRegion.get(key);
    }
Basic cache provider for development purposes, should be avoided to use in production as there is no eviction and timeouts.
primefaces/src/main/java/org/primefaces/cache/DefaultCacheProvider.java