Emond Papegaaij created WICKET-6808:
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             Summary: Cannot add page to AjaxRequestTarget
                 Key: WICKET-6808
                 URL: https://issues.apache.org/jira/browse/WICKET-6808
             Project: Wicket
          Issue Type: Bug
          Components: wicket-core
    Affects Versions: 9.0.0
            Reporter: Emond Papegaaij


The following code used to work in Wicket 8 and before and refresh the entire 
page:
{code}
@Override
protected void onSaved(IPartialPageRequestHandler target) {
    target.add(findPage());
}
{code}

In wicket 9 it gives:
{code}
java.lang.IllegalArgumentException: cannot update component that does not have 
setOutputMarkupId property set to true. Component: [Page class = 
nl.topicus.keyhub.web.pages.AccountProfielPage, id = 4, render count = 2]
        at 
deployment.keyhub-web-console.war//org.apache.wicket.core.request.handler.AbstractPartialPageRequestHandler.add(AbstractPartialPageRequestHandler.java:71)
        at 
deployment.keyhub-web-console.war//nl.topicus.keyhub.web.components.panel.AccountOverviewPanel$Config2FALink$1.onSaved(AccountOverviewPanel.java:61)
        at 
deployment.keyhub-web-console.war//nl.topicus.keyhub.web.components.contextpanel.TwoFactorAuthenticationConfigPanel$1.onSave(TwoFactorAuthenticationConfigPanel.java:59)
        at 
deployment.keyhub-web-console.war//nl.topicus.keyhub.web.components.panel.ContextPopupSubmitLink.onSubmit(ContextPopupSubmitLink.java:24)
        at 
deployment.keyhub-web-console.war//nl.topicus.keyhub.web.components.form.UpgradingSubmitLink.doSubmit(UpgradingSubmitLink.java:44)
        at 
deployment.keyhub-web-console.war//nl.topicus.keyhub.web.components.form.UpgradingSubmitLink.onSubmit(UpgradingSubmitLink.java:37)
{code}

Calling {{setOutputMarkupId(true)}} on the page fixes the error, but IMHO does 
not make much sense.



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