[TAP5-2249] Rendering an empty If component can cause a RenderQueueException

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.4
• Fix Version/s: 5.4
• Component/s: tapestry-core
• Assignee: Howard Lewis Ship
• Reporter: Howard Lewis Ship
• Created: 03/Dec/13 16:25
• Updated: 04/Dec/13 22:50
• Resolved: 04/Dec/13 22:50

Description

Rendering an empty If component causes the following error:

00:37:07.680 ERROR My5oosh - Render queue error in PostRenderCleanup[My5oosh:layout.if]: Component My5oosh:layout.if has rendered unbalanced elements; either it has started an element with MarkupWriter.element() and not followed up with MarkupWriter.end(), or it has invoked MarkupWriter.end() without first invoking MarkupWriter.element().
org.apache.tapestry5.ioc.internal.util.TapestryException: Component My5oosh:layout.if has rendered unbalanced elements; either it has started an element with MarkupWriter.element() and not followed up with MarkupWriter.end(), or it has invoked MarkupWriter.end() without first invoking MarkupWriter.element().

I suspect this is a bug in render-phase optimization.