One more thing: Everything works fine when I'm telling to servlet what is a sessionId: http://host/appName/servletA;jsessionid=69DAF786A6D1342C20C448EA4FD43F9E
Any hint what's wrong here ? Mark. --- Mark <[EMAIL PROTECTED]> wrote: > Now I'm absolutely lost :((( > > When one servlet gets null for current session, the same servlet > get > null in ANOTHER session, but after 3 minutes everything is back to > normal: servlet now which session it belongs to. > > Can anybody point where whould I look for a problem? > > Thanks, > Mark. > > --- Mark <[EMAIL PROTECTED]> wrote: > > > Hi everybody: > > it's where I am now: > > > > Since I don't want to create a session for non-authenticated > user, > > I > > made a small change to my login jsp: > > <%@ page session="false"> > > > > This is strange but it looks like I have this problem only when I > > access my web application through the proxy server. > > > > Here the steps how I reproduce my problem: > > 1. Invoke servlet A (any serlvet in my web application, but > login) > > using browser: http://host/appName/servletA > > > > The following code returns null as expected. > > HttpSession ses = req.getSession(false); > > > > 2. Login into application: new session get created by login > servlet > > and user's token stored in session. (expected) > > 3. I can access any servlets and it shows right session id, BUT > > when > > I access servlet A session object is null. > > > > now the crazy part: if I don't access "servlet A"( used in step > 1) > > for 4 minutes it starts working properly!!! and I able to get > > session > > using: > > HttpSession ses = req.getSession(false); > > > > I really don’t understand why it happens. Is it somehow session > Id > > get associated with servlet and reset later to correct value? > > > > And again, When no proxy involved everything looks fine. > > > > > > Comments? > > > > Thank you, > > Mark > > --- Mark <[EMAIL PROTECTED]> wrote: > > > > > Thanks Justin, > > > This is something I will look into and will keep the list > posted > > > with > > > update. > > > > > > Mark. > > > > > > P.S. But what can a reason for getSession() return !null if I > > wait > > > for a minute or so ? > > > > > > > > > --- Justin Ruthenbeck <[EMAIL PROTECTED]> wrote: > > > > > > > > > > > Mark, > > > > > > > > Check the session id that is included in the request > > > > (getRequestedSessionId) and verify that this sessionid is > > ALWAYS > > > > identical to the one used when the session was created. More > > > than > > > > likely, you'll find this is not the case. If you're > convinced > > > that > > > > the > > > > sessionid is found at one moment and not at another, try to > > find > > > a > > > > way to > > > > reproduce it and then post that to the list. > > > > > > > > There's a 99% chance something is wrong with your code and/or > > the > > > > > > > client's response causing the behavior you're seeing. The > fact > > > > that > > > > you're seeing it with one particular servlet (presumably one > > type > > > > of use > > > > case) makes it even more likely. > > > > > > > > justin > > > > > > > > > > > > At 09:14 AM 10/12/2004, you wrote: > > > > >Hi David, > > > > >Thanks for reply but I guess I need something else. All > > answers > > > to > > > > >your suggested situation are negative. Answers included in > > your > > > > >message. > > > > >--- David Wall <[EMAIL PROTECTED]> wrote: > > > > > > > > > > > Is it possible that your session has ended (too long > > between > > > > > > requests)? > > > > >nope, another servlet get session with no problem. and after > > few > > > > >minutes servlet is null problem just works fine. > > > > > > Check how long you have configured sessions to be active > > (in > > > > > > web.xml). Is > > > > > > it possible you are losing the encoded session ids (if > > > cookies > > > > are > > > > > > not being > > > > > > used)? It's easy to miss an encoded URL on a page for > > > get/post > > > > and > > > > > > thus lose > > > > > > the session id on the next request. Then again, I've > seen > > > bugs > > > > > > before in > > > > > > which cookies are quite reliable, but encoded URLs don't > > > always > > > > > > seem to > > > > > > work. > > > > >I do encode URL just in case, but Cookie is used on client > > > > >side(browser). When I look at the source page URL is not > > > encoded. > > > > > > > > > > > > > > > > > David > > > > > > > > > > > > > > > >Any other ideas? > > > > > > ----- Original Message ----- > > > > > > From: "Mark" <[EMAIL PROTECTED]> > > > > > > To: <[EMAIL PROTECTED]> > > > > > > Sent: Tuesday, October 12, 2004 8:36 AM > > > > > > Subject: request.getSession(false) randomly returns null > in > > > > servlet > > > > > > > > > > > > > > > > > > > Hi All, > > > > > > > I have unstable behavior in my web application when I > try > > > to > > > > get > > > > > > > HttpSession. > > > > > > > The problem is that the following code randomly returns > > > > _null_ > > > > > > for > > > > > > > HttpSession. > > > > > > > > > > > > > > But next http request from different servlet using the > > same > > > > code > > > > > > is > > > > > > > fine. and when I call servlet with problem I've got > null > > > > again. > > > > > > > Interesting, that if I wait for few minutes, this > problem > > > > does > > > > > > not > > > > > > > exists: I'm getting a session object with no problems > > > > > > > Here the code: > > > > > > > > > > > > > > ------ cut ------ > > > > > > > public void doPost( HttpServletRequest req, > > > > HttpServletResponse > > > > > > resp > > > > > > > ) > > > > > > > throws IOException, ServletException > > > > > > > { > > > > > > > String cPath = req.getContextPath(); > > > > > > > HttpSession ses = req.getSession(false); > > > > > > > /* ... ses is null sometimes ;(*/ > > > > > > > .... > > > > > > > ----- end cut ---- > > > > > > > > > > > > > > > > > > > > > Please note that I use req.getSession(true) in the > login > === message truncated === __________________________________ Do you Yahoo!? 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