Jonas created WICKET-4939:
-----------------------------

             Summary: AbstractAjaxTimerBehavior never triggers if attached to 
WebPage
                 Key: WICKET-4939
                 URL: https://issues.apache.org/jira/browse/WICKET-4939
             Project: Wicket
          Issue Type: Bug
          Components: wicket
    Affects Versions: 6.4.0
            Reporter: Jonas
            Priority: Minor


Since WICKET-4886 was fixed, AbstractAjaxTimerBehavior never triggers anymore 
if it is added the the page itself.
See: org.apache.wicket.ajax.AbstractAjaxTimerBehavior.shouldTrigger()
getComponent().findParent(WebPage.class) != null
is always false in that case, which seems to be wrong. It should also be ok if 
the component itself is the WebPage.
So, the method should probably read something like

        private boolean shouldTrigger()
        {
                return isStopped() == false &&
                                isEnabled(getComponent()) &&
                                (getComponent().findParent(WebPage.class) != 
null || getComponent() instanceof WebPage);
        }

Temporary workaround:
add the AbstractAjaxTimerBehavior to a subcomponent of the page instead.

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