Hi,

I'm confused about how I should access objects stored in a WebSession, namely 
when to use
`synchronized`, as:

- the documentation says the session is not thread safe

- the session example class WiaSession in Wicket In Action guards its User 
object by `synchronized`
  (just because of the StatelessForm??).

  BUT

- the Wicket wiki example does NOT use `synchronized`...
  
(https://cwiki.apache.org/WICKET/custom-websession-storing-objects-in-session.html)

- the other session example class CheesrSession in Wicket In Action simply 
contains an ArrayList and
  not guarded `synchronized`; I see that there's no setter, but ArrayList is 
not thread-safe,
  either. (AFAIK)

  
Could someone shed a light on these issues?

Thanks,

Aroly


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