"Tim Funk" <[EMAIL PROTECTED]> wrote in message 
news:[EMAIL PROTECTED]
> Me thinks this is your problem. You have some variables being shared which 
> are not thread safe.
>

Most common reason why, but intermediate caching proxies can do this too.

> > -All JSP pages extend a common class which writes the header and footer
> > using the JspWriter.
>
>
> -Tim
>
> Florian wrote:
>> Hi.
>>
>> I have a group of developers that are experiencing an intermitent problem 
>> with some of the their JSP pages when concurrent users are using the 
>> application.
>> They have had a hard time reproducing the issue in the development 
>> environement
>> so the details are still sketchy. I wanted to post this anyway hoping 
>> someone would recognize this as a know issue.
>>
>> The scenario:
>> User A is requesting JSP page X and User B is requesting JSP page Y.
>>
>> The symptoms:
>> User A: instead of seeing Page X, user X sees the header of page X and 
>> then Page Y with the date from user B's session.
>>
>> User B: sees a blank page.
>>
>> Additional clues:
>> -The user session are unaffected by the event described above. A simple 
>> refresh allows the user to recover.
>> -A "stream has already been closed" exception is thrown by the code for 
>> Page X
>> when an attempt is made to write to it.
>> -All JSP pages extend a common class which writes the header and footer
>> using the JspWriter.
>> -No static or instance variables are used.
>> -Using Tomcat 5.5.17
>> -Using 1.4 on Solaris 10.
>
>
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