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Posted to dev@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2015/12/25 10:39:49 UTC

[jira] [Created] (IGNITE-2273) Arrays.asList() should not be used to 1- and 2- elements.

Vladimir Ozerov created IGNITE-2273:
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             Summary: Arrays.asList() should not be used to 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
             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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