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From "Paul Merlin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZEST-120) Figure out the semantics for Default Methods in interfaces
Date Sun, 20 Nov 2016 15:32:58 GMT

    [ https://issues.apache.org/jira/browse/ZEST-120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15681328#comment-15681328
] 

Paul Merlin commented on ZEST-120:
----------------------------------

Added unit test demonstrating actual behaviour in 64d6d81ce945434d908e1614ce05bc2c935e089f

That is, bootstrap fails because the composites do not implement the offending methods.

Some aspects of default methods:

- they are part of an interface contract
- they can be overridden by child interfaces
- they can be implemented by child classes / mixins

I think we should have first class support for default methods, controlling their invocation
stack.

> Figure out the semantics for Default Methods in interfaces
> ----------------------------------------------------------
>
>                 Key: ZEST-120
>                 URL: https://issues.apache.org/jira/browse/ZEST-120
>             Project: Zest
>          Issue Type: Bug
>            Reporter: Niclas Hedhman
>
> The introduction of default methods in Java 8 has impact on Zest. 
>   * What semantics should we assign to it?
>   * How does the compiler deal with it?
>   * Do we need to intercept the call, to ensure the invocation stack is called?



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