> is the app just running on one server or are these guys 
> running it locally? is this your server setup? or their local setup?

I'm running the server from my workstation.

> > I made the web-app accessible online to a client and 
> immediately...one 
> > component in one page didn't render correctly.
> 
> is it always the same component in the same page?  or the 
> same component in different pages?  or different components 
> in the same page?

at least the same component in different pages - I didn't get a chance to
test it myself (I'm going to have a more rigorous session with them
tomorrow).

> > another guy on an apple computer didn't have any trouble. third guy 
> > (on another windows box) had the same trouble as the first
> 
> so, are these three guys are just pointing their browser to 
> it and getting different results based on browser/OS being 
> used?  are the results for these different guys consistent?  
> are there any other factors different between them?  (e.g. 
> different logins/accounts?)

yes, they are only pointing their browsers to it and apparently getting
different results, but I'm not sure it has anything to do with browser/OS
(since the bug doesn't appear consistently on IE/Win - for the first guy the
bug went away after the first few minutes)

> and i'm on a windows box.  if you wanna privately send me a 
> url to see the prob for myself, i'd be happy to take a look.

cool :) ... I'll send the URL in a private mail in a minute.

> > after browsing for a while, the problem silently went away
> > I found no error messages in the logs
> 
> ugh.  damn sneaky bugs.  can he/they recreate the problem 
> again?  by relogging in or restarting browser or clearing 
> cache or cookies or anything?

they didn't have to log in or anything - just fire up and browse.  The bug
didn't reappear for the first guy after it went away.  All the info I have
right now is based on these three phonecalls and the single screenshot.
I'll know more tomorrow. 

> > I couldn't reproduce the bug on my workstation
> 
> again, pointing to the app on a server or just running 
> locally on the workstation?

running locally on the workstation.

> > It seems each of the page components gets imported ok - but for (at 
> > least) one component none of the standard contexts (i.e. request, 
> > session, or
> > toolbox) are accessible.
> 
> can you try stripping down a version of the app to test this 
> theory?  it might help narrow down the problem.

the app is pretty compact so I'm not sure that would help much ... we'll
see.

> > Many of the page components have their own
> > controller bean that populates them with data (using request or 
> > session scope). Since TilesTool uses a RequestDispatcher to include 
> > resources each page component has it's own Velocity context.
> >
> > Which brings me to VelocityViewServlet and the 
> ChainedContext ... the 
> > page definition in question contains six components - so 
> counting the 
> > layout page it makes seven, almost simultaneous, calls to 
> > VelocityViewServlet for each page.  I took a look for myself but I 
> > couln't find anything that could shed any light on this behaviour.
> >
> > Any idea what could possibly be causing this?
> 
> nope, i'm clueless at this point.  and i'm still not even 
> really sure what "this" is. :)

heh heh ... hope you have a better idea now :)

Marin�



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