Stanislav Lukyanov updated IGNITE-8486:
    Attachment: jsr166-to-ignite.diff

> Update ConcurrentLinkedDeque in Ignite's master repository to the latest JDK 
> version
> ------------------------------------------------------------------------------------
>                 Key: IGNITE-8486
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8486
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Stanislav Lukyanov
>            Assignee: Stanislav Lukyanov
>            Priority: Major
>             Fix For: 2.6
>         Attachments: jsr166-to-ignite.diff
> Ignite still uses copies of several JSR 166 (j.u.concurrent) classes in it's 
> sources. Those copies are now outdated compared to the latest versions used 
> in JDK.
> In particular, `ConcurrentLinkedDeque` has received a couple of correctness 
> fixes recently (https://bugs.openjdk.java.net/browse/JDK-8188900, 
> https://bugs.openjdk.java.net/browse/JDK-8189387). It would be good to have 
> them in Ignite as well to protect ourselves from possible issues.
> The task is to update Ignite's `ConcurrentLinkedDeque8` to the latest version 
> of `ConcurrentLinkedDeque`, although keeping compatibility with earlier Java 
> version (e.g. JDK's version now uses Java 9's VarHandles which we can't use 
> yet).

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