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http://issues.apache.org/jira/browse/MYFACES-688?page=comments#action_12331830
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Stefan Betermieux commented on MYFACES-688:
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Hi Bill,
sorry, I have never used cactus before, but a simple test would be to add a
checkbox to the displayValueOnly.jsp from the simple examples web application.
E.g. after the checkbox, which toggles the displayValueOnly attribute you could
put another checkbox:
<h:selectBooleanCheckbox
id="checkBox2"
displayValueOnly="#{dvoFace.attribute}"/>
value="#{dvoFace.attribute}"/>
If you toggle the first checkbox to set the displayValueOnly attribute, the
second checkbox element causes a ClassCastException.
> displayValueOnly property on HtmlSelectBooleanCheckbox throws
> ClassCastException during rendering, second approach
> ------------------------------------------------------------------------------------------------------------------
>
> Key: MYFACES-688
> URL: http://issues.apache.org/jira/browse/MYFACES-688
> Project: MyFaces
> Type: Bug
> Components: Tomahawk
> Versions: 1.1.0, Nightly
> Environment: tomcat 5.5.7, java 1.5, linux 2.6.13
> Reporter: Stefan Betermieux
> Assignee: Martin Marinschek
> Fix For: Nightly
>
> When I create a HtmlSelectBooleanCheckbox and set displayValueOnly to true,
> an exception is raised during the rendering phase. During encodeEnd()
> HtmlRendererUtils.renderDisplayValueOnlyForSelects() is called.
> The following snippet causes the problems:
>
> if (uiComponent instanceof UISelectMany) {
> isSelectOne = false;
> selectItemList = RendererUtils.getSelectItemList((UISelectMany)
> uiComponent);
> converter = findUISelectManyConverterFailsafe(facesContext, uiComponent);
> } else {
> isSelectOne = true;
> selectItemList = RendererUtils.getSelectItemList((UISelectOne) uiComponent);
> converter = findUIOutputConverterFailSafe(facesContext, uiComponent);
> }
> Since the HtmlSelectBooleanCheckbox is derived neither from UISelectMany nor
> from UISelectOne but from UISelectBoolean, the cast to UISelectOne fails.
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