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From: "Jorge Alfonso" <jorge@qbex.com>
To: "'Tomcat Users List'" <users@tomcat.apache.org>
References: <E8A9999721984B9193A7FC34118C3133@ubkja> <5675a9c9-3725-739a-7a72-38a8f882ce43@christopherschultz.net> <CAHn_LryUbZff+pKnk5KgGx_BraGNZP=a=-i5PKp-VwUumNqOZg@mail.gmail.com>
In-Reply-To: <CAHn_LryUbZff+pKnk5KgGx_BraGNZP=a=-i5PKp-VwUumNqOZg@mail.gmail.com>
Subject: RE: Apache Tomcat 8.5.4 question
Date: Sun, 28 Aug 2016 17:59:10 -0400
Message-ID: <7102DF95CE4A4336AA392090EC7A6863@ubkja>
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archived-at: Sun, 28 Aug 2016 21:59:23 -0000

Dear Sirs

In addition I installed Tomcat 7.0.70 and behaves exactly the same as the 8
versions. Only the first user logging in gets to work all others only up to
the Main Menu.

In the Tomcat console it appears working in all sessions, but no display to
the second, third and further sessions 

-----Original Message-----
From: Johanes Soetanto [mailto:otnateos@gmail.com] 
Sent: Saturday, August 27, 2016 11:12 PM
To: Tomcat Users List
Subject: Re: Apache Tomcat 8.5.4 question

On 27 Aug 2016 10:43 pm, "Christopher Schultz"
<chris@christopherschultz.net>
wrote:
>
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> Jorge,
>
> On 8/26/16 10:26 PM, Jorge Alfonso wrote:
> > Dear Sirs
> >
> > I configured and started Tomcat Server on Windows 2008-R12 Server.
> >
> > Compiled and deployed a Java Vaadin Web application that I just 
> > started to program 2 months ago. My experience with Vaadin is only
> > 2 months and the Tomcat Server only 2 days. I am a newbie learning 
> > Java, Vaadin and Tomcat, but willing to investigate and learn
> >
> > The application starts just fine and runs the login and executes the 
> > main menu all the time, it does not matter how many sessions or 
> > where from, remote systems or localhost.
> >
> > The only session or execution that allows running options from the 
> > Menu is the first one. all the other sessions are not getting 
> > displayed the forms and the information.

Have the application been tested on other Tomcat version? E.g. 7.x You may
want to change log configuration to find what happened when you try to
access the form etc since Vaadin allows you to debug your application on
some IDE.

>
> So, the main menu works for everyone, but the other stuff only works 
> properly for the first user to login? What if that user logs out, then 
> logs back in again? Does it work again for that user, or is it 
> literally the *first session* that works, and none others work?
>
> > I have investigated this behavior on Google and Apache but 
> > unfortunately there is nothing that I can use to properly guide my 
> > efforts.
> >
> > I need to isolate if this could be a parameter or configuration 
> > missing in Tomcat or this is a Vaadin Framework problem with session 
> > handling or the like.
> >
> > I do not want to overwhelm you initially with configuration in 
> > Tomcat, logs or console file, unless you want me to submit them
>
> I have no personal experience with Vaadin, so I'm probably going to 
> ask a lot of dumb questions.
>
> First of all, have you personally written code to access the 
> HttpSession? Can you give us an example?
>
> - -chris
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