code: public static AdvancedCache ignoreReturnValuesCache(AdvancedCache cache) {
  		return cache.withFlags( Flag.SKIP_CACHE_LOAD, Flag.SKIP_REMOTE_LOOKUP, Flag.IGNORE_RETURN_VALUES );
  	}
docs: Transform a given cache into a cache that ignores return values for
  operations returning previous values, i.e. {@link AdvancedCache#put(Object, Object)}
  
  @param cache to be transformed
  @return a cache that ignores return values