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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-2273) Arrays.asList() should not be used for 1- and 2- elements.
Date Thu, 31 Mar 2016 11:36:25 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-2273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-2273:
------------------------------------
    Labels: performance  (was: )

> Arrays.asList() should not be used for 1- and 2- elements.
> ----------------------------------------------------------
>
>                 Key: IGNITE-2273
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2273
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: general
>    Affects Versions: ignite-1.4
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>              Labels: performance
>             Fix For: 1.6
>
>
> There are several places in code where Arrays.asList is used as follows:
> 1) For a single element. These places should be replaced with Collections.singleton()
to avoid unnecessary array allocations.
> 2) For two elements. Here we should create our own "doubled-singleton" implementation.
> Some of these places are located on hot code paths (e.g. cache PUT).



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