code: public static Set<JAASSystem> getAllJAASSystems()
      {
          final Set<JAASSystem> ret = new HashSet<>();
          final Cache<Long, JAASSystem> cache = InfinispanCache.get().<Long, JAASSystem>getCache(JAASSystem.IDCACHE);
          for (final Map.Entry<Long, JAASSystem> entry : cache.entrySet()) {
              ret.add(entry.getValue());
          }
          return ret;
      }
docs: Returns all cached JAAS system in a set.
  
  @return set of all loaded and cached JAAS systems