>
> as i said before, this works about 60-70% of the time, and the subsquent
> page will successfully extract 'userName' and assign it to 'foo'. but
other
> times the value isn't there and foo is null, throwing a
nullpointerexception
> when i try to put it back into the session.
>
Note that "putting it back in the session" is unnecessary. The getValue()
method doesn't remove an object reference from the session object, it just
gets a copy of the reference. Only removeValue() removes the reference.
So, as a first step, take out the code that does a putValue except where you
wish to associate the key "foo" with a different object.
_3
M
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