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https://issues.apache.org/jira/browse/WICKET-1491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matej Knopp resolved WICKET-1491.
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Resolution: Fixed
There should be no exception
> ModalWindow: unclear exception if property "Content" is not set
> ---------------------------------------------------------------
>
> Key: WICKET-1491
> URL: https://issues.apache.org/jira/browse/WICKET-1491
> Project: Wicket
> Issue Type: Improvement
> Components: wicket-extensions
> Affects Versions: 1.3.2
> Reporter: Sergey Derugo
> Assignee: Matej Knopp
>
> 1. Create ModalWindow and don't set property *content* , for example:
> {code}
> package test.demo.webcontrols.popup;
> import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow;
> public class DialogMessage extends ModalWindow {
> public DialogMessage(String id) {
> super(id);
> setTitle("popups.notification.header");
> //setContent(new InformationMessageContent(getContentId()));
> }
> }
> {code}
> 2. Create instance of DialogMessage and call method *show* - exception is
> thrown:
> message - WicketMessage: Error creating page for modal dialog.
> Using this exception it's impossible to understand what is wrong. Either
> exception message should be more detailed.
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