How to store jsp session data of different user in util.hashmap

how to store jsp session data of different user in java.util.hashmap
and access the data of all user on the server side
The same example is given in professional jsp but its not working.
I can use getIds() of httpsessioncontext but it's depricated

Hi
I'm trying to make an example.
With the following codes you can get the date from the session.
request.getSession().getAttribute("sessionname")
To store it in a hashmap you could do it like this ->
Hashmap hm = new Hashmap();
hm.put(Object key, request.getSession().getAttribute("sessionname"));
I hope you understand it if not just write it!
Cyrill

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How to store jsp session data of different user in util.hashmap

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