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Posted to dev@ignite.apache.org by "Stanislav Lukyanov (JIRA)" <ji...@apache.org> on 2018/05/14 16:07:00 UTC

[jira] [Created] (IGNITE-8486) Update ConcurrentLinkedDeque in Ignite's master repository to the latest JDK version

Stanislav Lukyanov created IGNITE-8486:
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             Summary: 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


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 Those copies are now outdated compared to the latest versions used in JDK.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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