parameters copy in Dipatcher

[Musachy Barroso <mu...@gmail.com>]

Looking at Dispatcher.java:

    public HashMap<String,Object> createContextMap(Map requestMap,
                                    Map parameterMap,
                                    Map sessionMap,
                                    Map applicationMap,
                                    HttpServletRequest request,
                                    HttpServletResponse response,
                                    ServletContext servletContext) {
        HashMap<String,Object> extraContext = new HashMap<String,Object>();
        extraContext.put(ActionContext.PARAMETERS, new HashMap(parameterMap));
        extraContext.put(ActionContext.SESSION, sessionMap);

why are the parameters wrapped on a new Map? I would say to prevent
people from adding/removing form it, but is there any good reason for
that? (users can always get "#parameters" from the context and modify
them anyway)

musachy

-- 
"Hey you! Would you help me to carry the stone?" Pink Floyd

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