Wicket Can't Find Component Error

2014-05-14 Thread mashleyttu 
Hello All,

Maybe a couple times a week we get a wicket error stating: Unable to find
component with id XZY in . Found with similar names:  when a user
submits one of our forms (we have lots, it has happened on different ones).
We have had a couple user tell us they were sent to our custom error page,
and had to re-complete the form. 

We are having a hard time re-producing this error. My thought is somehow our
page map is getting evicted, because I do not believe it has anything to do
with session timeout. We do not implement any MaxPageMap or custom eviction
strategies. We are using whatever the wicket default is. 

My other thought is on certain request we are getting serialization errors,
but I'm not seeing any in our tomcat logs.

Our site currently has anywhere from about 5 - 20 users on at any given
time. It is very small, and this only happens 2 or 3 times a week. My
concern is as we grown this will happen more often.

Any ideas on what could be occurring? This is an older wicket app built on
wicket 1.5.10. 

Thanks,
Matt

PS. We also get errors a few times a day telling us page number 0 or 1 or 4,
etc has expired. These always occur when there is no active session. My
guess is it could be a bot or something trying to access one of our sites
URLs. I'm less concerned about this error, but still curious.

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Re: Wicket Can't Find Component Error

2014-05-13 Thread Serban.Balamaci 
Hi, just my 2 cents. When I usually encounter this, is because of user
clicking on an old link. For example say we have a change-profile
AjaxLink taking the user to profile panel. But until the server responds
with the new Profile panel, it's possible for the user to click another link
products in the old panel. Since the page state is different on the
server and there is no change-profile link in the new ProfilePanel it's
rightly stating it's not finding the component.

We usually show progress and and disable the other controls with a layer on
top of the controls that prevents the user from clicking other buttons until
response from the previous request arrived. 
Just check doubleclicking on different links or buttons, or simulate an
impatient user clicking away madly after he clicked on the submit button and
the response is yet to have arrived.

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