[WICKET-2705] Feedback messages get cleaned up in AJAX request, thus never rendered and never visible to user

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.6
• Fix Version/s: 6.0.0-beta1
• Component/s: wicket
• Environment: Sun Glassfish Enterpriser Server 2.1
• Assignee: Igor Vaynberg
• Reporter: Jan Winkler
• Created: 28/Jan/10 13:12
• Updated: 03/Feb/12 06:41
• Resolved: 03/Feb/12 06:41

Description

Consider a page containing a form and an AJAXy component (as in an AJAX link or a panel with AjaxSelfUpdatingTimerBehavior). The form contains code, that makes its processing take relatively long time, even when validation fails (let's say we forgot to fill in a requred field). The form gets submitted, and while it's processing, the AJAX component triggers a request (AJAX link gets clicked, or AjaxSelfUpdatingTimerBehavior kicks in). While the AJAX request gets served, cleanupFeedbackMessages() is called, wiping all feedback messages found by WebSession.MESSAGES_FOR_COMPONENTS filter.

WebSession.MESSAGES_FOR_COMPONENTS implementation (or its usage in cleanupFeedbackMessages()) is a little bit fishy, as it accept()s messages, that haven't been rendered.

Will add testcase.

Issue Links

• incorporates: WICKET-499 Investigate whether we can use component meta data for the storage of feedback messages
• is depended upon by: WICKET-2948 Clash between AutoComplete request and Form submit request
• relates to: WICKET-2948 Clash between AutoComplete request and Form submit request