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Date: Tue, 03 Aug 2004 11:00:35 +0200
From: =?ISO-8859-1?Q?Andr=E9_Weidemann?= <Andre.Weidemann@web.de>
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To: Tomcat Users List <tomcat-user@jakarta.apache.org>
Subject: Re: tomcat output gets mixed up for different requests
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QM wrote:
> Two clients' content getting mixed up with one another: sounds like
> misuse of a shared variable, such as an instance variable inside the
> servlet class, use of the servlet context for client data, etc.

I checked all variables and declarations and I'm sure that there are no
variables being "misused".

For debugging purposes I added a System.out(this); at the beginning of
the doGet() method of the servlet class.

No matter which client is calling the servlet, the output of
System.out(this); is always the same. The output looks like this:

"Navigation@1142196"

So it seems that Tomcat does not spawn a new servlet for a new request,
althought my web.xml file contains:

<servlet>
         <servlet-name>Navigation</servlet-name>
         <servlet-class>Navigation</servlet-class>
         <load-on-startup>5</load-on-startup>
</servlet>


With every client calling the same Method it seems very likely that the
output is getting mixed up.

Adding a *synchronized* in front of the doGet() method, makes the
problem disappear, but also makes the Tomcat very slow.

Any help will be greatly appreciated,
  Andr�.






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