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https://issues.apache.org/jira/browse/WICKET-3439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12992630#comment-12992630
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Richard Emberson commented on WICKET-3439:
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Also, in CheckBoxMultipleChoice appendOptionHtml method there is:
Object displayValue = getChoiceRenderer().getDisplayValue(choice);
Should this also be:
T displayValue = (T)getChoiceRenderer().getDisplayValue(choice);
> org.apache.wicket.markup.html.form.AbstractChoice renderer cast in method
> appendOptionHtml
> ------------------------------------------------------------------------------------------
>
> Key: WICKET-3439
> URL: https://issues.apache.org/jira/browse/WICKET-3439
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.5-RC1
> Environment: all
> Reporter: Richard Emberson
> Priority: Minor
>
> In class org.apache.wicket.markup.html.form.AbstractChoice<T, E> the renderer
> instance
> variable has signature:
> private IChoiceRenderer<? super E> renderer;
> In the method appendOptionHtml the renderer's getDisplayValue method is
> called as follows:
> T objectValue = (T)renderer.getDisplayValue(choice);
> where the signature for the IChoiceRenderer<E> getDisplayValue method is:
> Object getDisplayValue(E object);
> So, is it a fact that for all usages of AbstractChoice that the display value
> returned by a
> renderer of type E will always be of type T (not Object)??? If not, then one
> should expect cast
> exceptions.
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