[WICKET-6027] Nested TransparentWebMarkupContainer, markup of inner component not found

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 7.1.0
• Fix Version/s: 7.2.0, 8.0.0-M1
• Component/s: wicket
• Assignee: Andrea Del Bene
• Reporter: Roland Foerther
• Created: 07/Nov/15 15:55
• Updated: 18/Nov/15 22:50
• Resolved: 15/Nov/15 16:52

Description

In the attached example page a FeedbackPanel should be rendered on AJAX-Request by pressing an AjaxButton. If you submit the form with empty input in TextField 'username" you get a MarkupNotFoundError for the FeedbackPanel:

"org.apache.wicket.markup.MarkupNotFoundException: Markup not found for Component: [FeedbackPanel [Component id = feedback]]
at org.apache.wicket.Component.internalRender(Component.java:2348)
at org.apache.wicket.Component.render(Component.java:2308)
at org.apache.wicket.page.XmlPartialPageUpdate.writeComponent(XmlPartialPageUpdate.java:119)
at org.apache.wicket.page.PartialPageUpdate.writeComponents(PartialPageUpdate.java:245)"

The MarkupNotFoundError is associated to the two TransparentWebMarkupContainer's in the page. If you remove one of them for example, the problem is gone.

Issue Links

• contains: WICKET-6035 java.lang.StackOverflowError if Wicket requests misdirected by load balancer
• is broken by: WICKET-5898 StackOverflowError after form submit with a validation error