code: public static Group get(final UUID _uuid)
          throws CacheReloadException
      {
          final Cache<UUID, Group> cache = InfinispanCache.get().<UUID, Group>getCache(Group.IDCACHE);
          if (!cache.containsKey(_uuid) && !Group.getGroupFromDB(Group.SQL_UUID, _uuid.toString())) {
              cache.put(_uuid, Group.NULL, 100, TimeUnit.SECONDS);
          }
          final Group ret = cache.get(_uuid);
          return ret.equals(Group.NULL) ? null : ret;
      }
docs: Returns for given parameter <i>_uuid</i> the instance of class
  {@link Group}.
  
  @param _uuid _uuid to search in the cache
  @return instance of class {@link Group}
  @throws CacheReloadException on error