What 's function about the properties that the properties vars and unknownFields,in the Job Class

[ijaychang]

public class Job implements Serializable { private Map<String,Object> vars; private Map<String,Object> unknownFields = new HashMap<String,Object>(); ... }

What 's function about the properties that the properties vars and unknownFields .

[gresrun]

I'm not sure I understand your question.