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Posted to users@wicket.apache.org by Rakesh A <ia...@rediffmail.com> on 2014/09/09 12:27:19 UTC
CouldNotLockPageException while trying 'inspect' option of Debug
bar
Hi,
I was trying to analyze my wicket page, by adding Wicket debug bar. When I
click on the 'Inspector' option in Wicket debug bar I get a
CouldNotLockPageException. Thread dump logged is provided below, I couldn't
understand much from it, can anybody point me towards why I am getting this
exception.
Thanks,
Rakesh.A
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Re: CouldNotLockPageException while trying 'inspect' option of
Debug bar
Posted by Rakesh A <ia...@rediffmail.com>.
Forgot to mention, an anonymous class implementation was done for the
AjaxEventBehavior, and the #onEvent(..) method access' Page properties in
it.
Regards,
Rakesh.A
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Re: CouldNotLockPageException while trying 'inspect' option of
Debug bar
Posted by Rakesh A <ia...@rediffmail.com>.
Hi,
After some debugging & investigation, It turned out to be a
'AjaxEventBehavior' for 'load' event [page onload event], which was added to
page was causing this lock, removing this behavior solved the page locking
issue.
Thanks,
Rakesh.A
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Re: CouldNotLockPageException while trying 'inspect' option of Debug bar
Posted by Martin Grigorov <mg...@apache.org>.
Can you reproduce this in a simple quickstart app ?
AbstractAjaxTimerBehavior will send a request on the defined timeout, but
the processing of this request should be fast enough. Check what you do in
#onTimer() callback.
On Tue, Sep 9, 2014 at 2:02 PM, Rakesh A <ia...@rediffmail.com> wrote:
> Hi,
> Strange thing is, even if I increase the request timeout to 5mins using
> "org.apache.wicket.settings.IRequestCycleSettings.setTimeout(Duration)", I
> get the same exception.
>
> I use Wicket 6.15.0, pages are unversioned & page uses
> 'AbstractAjaxTimerBehavior'.
> Does 'AbstractAjaxTimerBehavior' cause this lock?
>
> Regards,
> Rakesh.A
>
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Re: CouldNotLockPageException while trying 'inspect' option of
Debug bar
Posted by Rakesh A <ia...@rediffmail.com>.
Hi,
Strange thing is, even if I increase the request timeout to 5mins using
"org.apache.wicket.settings.IRequestCycleSettings.setTimeout(Duration)", I
get the same exception.
I use Wicket 6.15.0, pages are unversioned & page uses
'AbstractAjaxTimerBehavior'.
Does 'AbstractAjaxTimerBehavior' cause this lock?
Regards,
Rakesh.A
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Re: CouldNotLockPageException while trying 'inspect' option of Debug bar
Posted by Martin Grigorov <mg...@apache.org>.
The Inspector tries to get a reference to the page by its id to be able to
get a list of its components.
But another thread is already acquired the lock to this page... It seems to
write the page's markup to the browser but I cannot say why it does this
for more than a minute.
Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov
On Tue, Sep 9, 2014 at 1:27 PM, Rakesh A <ia...@rediffmail.com> wrote:
> Hi,
>
> I was trying to analyze my wicket page, by adding Wicket debug bar. When I
> click on the 'Inspector' option in Wicket debug bar I get a
> CouldNotLockPageException. Thread dump logged is provided below, I couldn't
> understand much from it, can anybody point me towards why I am getting this
> exception.
>
>
> Thanks,
> Rakesh.A
>
> --
> View this message in context:
> http://apache-wicket.1842946.n4.nabble.com/CouldNotLockPageException-while-trying-inspect-option-of-Debug-bar-tp4667405.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>