well uh.... perhaps I'm misunderstanding something, but 'application' is the completely wrong scope, if you want the javabeans to *not* be shared between all users of your application.
> -----Original Message----- > From: Anbu [mailto:[EMAIL PROTECTED] > Sent: Tuesday, February 24, 2004 5:39 AM > To: Tomcat Users List > Subject: Re: One user seeing another user's data > > > Hello Anotonio, > > Thanks for your reply. > > We are using JSPs and invoke java beans from them. We have > the scope parameter set to 'application' in JSPs. I will look > into the bean source code and check for non-final static variables. > > Regards, > Anbu > > Antonio_Fiol_Bonnín <[EMAIL PROTECTED]> wrote: > Hi, > > - Try to turn all your servlet's non-final STATIC or INSTANCE > variables > into LOCAL scope variables. This is definitely the first > step, and will > likely remove 90% of problems. > > For singletons or static variables outside your servlet: > > - Concentrate all your accesses to each of them in a short portion of > code (put all accesses together). Surround them with a > synchronized(object) { }. You will remove 80% of the > remaining problems. > > - If a collection is not in local scope, use a synchronized > version of > it. (??%) > > For the rest, you will have to figure out The most important point > once the above are OK, in my opinion, is that you know the business > logic concerning object access and its required independence. > It's more > difficult, but you probably know that better than anyone. > > > Yours, > > > Antonio Fiol > > > > > Anbu wrote: > > >Hello All, > > > >I think that this problem (one user seeing another user's > data) might > >be due to threadedness/concurrency of Tomcat. Ofcourse there > could be problem with the JSP application too. > > > >Can anyone throw some light on the possible session mixups happening > >with Tomcat server? I have seen the dev mailing list that > such a thing happens when there are two or more tomcat server > instances. > > > >Thanks and Regards, > >Anbu > > > > > > > > > > Keywords (for easier searches): threading issues, session mixup, > concurrency problems. > > > > > > ATTACHMENT part 2 application/x-pkcs7-signature name=smime.p7s > > > --------------------------------- > Do you Yahoo!? > Yahoo! Mail SpamGuard - Read only the mail you want. > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
