Sometimes "jsessionid=xxx" appears and sometimes it doesn't a bug ?

[Artemesia Lakener]

Orginally I thought it was a struts problem, but now I think it is a general servlet question ---

I use "struts" framework which automatically handles the "encodeURL" for me. I have checked my browser by using "isREquestedSessionIDFromCookie()" method and it returns TRUE so my browser is supporting cookies. Now the confusing part is -- Sometimes I don't see any "jsessionid=xxxx" but sometimes I see "jsessionid=..." on the URL, it looks like quite arbitrary, sometimes on this page I see it, but not on next page, and vice versa, the application works fine though. I am wondering if anybody knows the reason for this. Is this a bug coming from my application ? But I really don't do any session tracking here as struts handles that for me. why does this happen ?

[Artemesia Lakener]

The interesting thing is even after I block the cookies on my browser, when I get to the beginning JSP page, first I saw "jsessionid=.." when clikc "submit" to go to the next page, but when I click "back" to the first page, and then click "refresh" button, then click the submit, this time the "jsessionid=..." disappeared. why ? AM I supposed to see it because I have blocked the cookies ??

[Sharad Agarwal]

Only links which have been encoded using the encodeURL() API will, when clicked, show jsessionid in the address bar (I am assuming that cookies are disabled/unavailable). I am not aware, though, how Struts handles this under the covers or how it picks and chooses to encode the URL.