code: public void invalidate(Key... keys) {
          for (Key key : keys) {
              logger.debug("Invalidating the response cache key : {} {} {} {}, {}",
                      key.getEntityType(), key.getName(), key.getVersion(), key.getType(), key.getEurekaAccept());
  
              readWriteCacheMap.invalidate(key);
              Collection<Key> keysWithRegions = regionSpecificKeys.get(key);
              if (null != keysWithRegions && !keysWithRegions.isEmpty()) {
                  for (Key keysWithRegion : keysWithRegions) {
                      logger.debug("Invalidating the response cache key : {} {} {} {} {}",
                              key.getEntityType(), key.getName(), key.getVersion(), key.getType(), key.getEurekaAccept());
                      readWriteCacheMap.invalidate(keysWithRegion);
                  }
              }
          }
      }
docs: Invalidate the cache information given the list of keys.
  
  @param keys the list of keys for which the cache information needs to be invalidated.