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https://issues.apache.org/jira/browse/WICKET-3256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972437#action_12972437
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Martin Grigorov commented on WICKET-3256:
-----------------------------------------
James, what you need is currently supported by
org.apache.wicket.request.cycle.IRequestCycleListener.onException(RequestCycle,
Exception).
You can add a custom listener that will return custom IRequestHandler depending
on the Exception type.
The ExceptionMapper is used only if none of the registered listeners returns a
non-null response for its onException() method.
> Use a Provider for IExceptionMapper
> -----------------------------------
>
> Key: WICKET-3256
> URL: https://issues.apache.org/jira/browse/WICKET-3256
> Project: Wicket
> Issue Type: New Feature
> Components: wicket
> Affects Versions: 1.5-M3
> Reporter: James Carman
> Assignee: Pedro Santos
> Attachments: WICKET-3256.patch
>
>
> Currently, in order to plug in your own IExceptionMapper, you have to
> override a method. This makes developing "frameworks" difficult, since your
> client code has to do a method override in order to get everything working.
> It would be nicer if the IExceptionManager was created via a "provider."
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