code: public void clearCache() {
  		logger.debug("Clearing entire resource bundle cache");
  			this.cachedProperties.clear();
  			this.cachedMergedProperties.clear();
  		this.cachedFilenames.clear();
  		this.cachedResources.clear();
  	}
docs: Clear the resource bundle cache.
  Subsequent resolve calls will lead to reloading of the properties files.