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https://issues.apache.org/jira/browse/TAP5-2746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ben Weidig reassigned TAP5-2746:
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    Assignee: Ben Weidig

> tapestry-func should move to JDK functional classes
> ---------------------------------------------------
>
>                 Key: TAP5-2746
>                 URL: https://issues.apache.org/jira/browse/TAP5-2746
>             Project: Tapestry 5
>          Issue Type: Improvement
>          Components: tapestry-func
>            Reporter: Ben Weidig
>            Assignee: Ben Weidig
>            Priority: Minor
>
> Due to historical reasons, tapestry-func duplicates a lot of functionality 
> that is now provided by the JDK itself.
> For example:
>  * org.apache.tapestry5.func.LazyValue<T> is a java.util.function.Supplier<T>
>  * org.apache.tapestry5.func.Worker<T> is a java.util.function.Consumer<T>
>  * org.apache.tapestry5.func.Predicate<T> is a java.util.function.Predicate<T>
> I propose the following changes:
>  * The existing types should extend their JDK equivalent, with the 
> single-abstract method of the JDK variant calling the original one.
> This way, no existing code will break, but all the convenience methods from 
> the JDK type are available.
>  * tapestry-func types should be marked as deprecated
>  * Types using the tapestry-func types should accept the JDK variants instead
>  * Mark the types as @FunctionalInterface
>  
> However, replacing org.apache.tapestry5.func.Flow<T> with 
> java.util.stream.Stream<T> seems like overkill to me.
> It would need to be benchmark, but my educated guess is that the overhead of 
> Streams wouldn't justify a replacement.



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