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Johan,
On 12/17/2009 7:52 AM, Johan Thorselius wrote:
> request.getSession() returns an incorrect null on Linux, but on Windows it's
> OK.
That's odd... request.getSession() should never return null. This method:
"
Returns the current session associated with this request, or if the
request does not have a session, creates one.
"
> I have an ordinary Struts2 web app deployed on Tomcat 6.0.20, together with
> a JAAS-solution where I have my own Valve class.
>
> The Valve repeatedly executes invoke() with the following code-snippet (here
> very much simplified):
> .
> .
> .
> if (LOGGER.isDebugEnabled()) {
> if (request.getSession() == null) {
> // Log incorrect event (1)
> } else {
> // Log OK (2)
> }
> if (request.getSession(true) == null) {
> // Log incorrect event (3)
> } else {
> // Log OK (4)
> }
> }
>
> /*
> * Here a NullPointerException occurs
> */
> request.getSession().setAttribute("...",...);
In the "log incorrect event" code, do you return from the valve, or do
you continue processing?
> In the first request the session is not lost, everything is fine with (2)
> and (4). In the following requests getSession() returns null (1) and (3).
Are you storing the request object anywhere and perhaps using it after
it's been recycled?
- -chris
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