Created an issue:
http://issues.apache.org/jira/browse/WICKET-2025
Regards,
Erik.
Erik van Oosten wrote:
Martijn,
I just went through the source (1.4-rc1) to trace a detach manually
and find suspect callers of isVisible. I found none during detach, but
I did find one call to isVisible /after/ detach. A simple run
confirmed this.
The call to isVisible /after/ detach can be found in method
ComponentRequestTarget#respond(RequestCycle). That method initiates a
detach and then calls page.endComponentRender. This leads to a call to
Page#checkRendering which calls isVisibleInHierarchy() and from there
isVisible(). Method checkRendering only does something when the debug
setting 'componentUseCheck' is enabled (which according to the javadoc
is true by default).
I vividly remember the pain when I found out that isVisible was called
/during/ detach. So I am certain the problem existed at some time in
the past (1.2, 1.3?). I can bang my head against the wall for not
having documented the problem more thoroughly back then. Anyways, a
call to isVisible /after/ detach has similar problems to a call during
detach.
Regards,
Erik.
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