[WICKET-6870] Wicket complains about component failing to render

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Duplicate
• Affects Version/s: 8.11.0
• Fix Version/s: 8.12.0
• Component/s: wicket-core
• Assignee: Sven Meier
• Reporter: Vít Rozkovec
• Created: 19/Feb/21 21:23
• Updated: 19/Feb/21 23:21
• Resolved: 19/Feb/21 23:21

Description

After upgrading wicket from version 8.10.0 to 8.11.0 my components started complain and throw exceptions about components not being rendered.

I've managed to create a quickstart with minimum steps that reproduce the bug.

The problem lies in the behavior InvisibleWhenNoChildrenVisibleBehavior which is added to ButtonPanel on line #56. This behavior worked fine until wicket 8.10.0. in wicket 8.11.0 it doesn't work anymore.

Issue Links

• duplicates: WICKET-6863 Method Component.setVisibilityAllowed should call onVisibleStateChanged()