[WICKET-6189] Return Optional<T> from RequestCycle.find(Class<T>)

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 8.0.0-M1
• Fix Version/s: 8.0.0-M1
• Component/s: wicket
• Assignee: Sven Meier
• Reporter: Sven Meier
• Created: 21/Jun/16 09:20
• Updated: 28/Jun/16 08:47
• Resolved: 28/Jun/16 08:47

Description

RequestCycle.find(Class<T>) is mostly used to get the current AjaxRequestTarget.
Since the returned reference might be null (in case of a non-Ajax request), it would be better to return an Optional<AjaxRequestHandler>.

Issue Links

• is related to: WICKET-6104 Rework AjaxFallback** components to use java.util.Optional for their #onEvent methods