code: public static void put(String key, ToolCreator toolCreator) {
  		if (null != key && null != toolCreator) {
  			REGISTRY.put(key, toolCreator);
  		}
  	}
docs: Add another key to the registry. This will overwrite the previous value.
  
  @param key
  key for the toolbar actions
  @param toolCreator
  toolbar action creator