THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Note: MountMapper and its related classes are still available in 7.x but deprecated and not used by Wicket itself. They will be completely removed in Wicket 8.0.0
Renamed all *AjaxResponse classes to *PartialPageUpdate WICKET-5929
XmlAjaxResponse was renamed to XmlPartialPageUpdate (see git commit 7c40e4dafa75973bf99b34567d977f310a5f02d0)
AuthenticatedWebApplication#onUnauthorizedPage WICKET-5490
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