[jira] [Commented] (IGNITE-3809) ArrayIndexOutOfBoundsException in GridUnsafeLru

["Roman Shtykh (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-3809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15454905#comment-15454905 ] 

Roman Shtykh commented on IGNITE-3809:
--------------------------------------

http://apache-ignite-users.70518.x6.nabble.com/lt-default-gt-Unexpected-exception-during-cache-update-java-lang-ArrayIndexOutOfBoundsException-503-td7356.html

> ArrayIndexOutOfBoundsException in GridUnsafeLru
> -----------------------------------------------
>
>                 Key: IGNITE-3809
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3809
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.7
>            Reporter: Valentin Kulichenko
>            Assignee: Roman Shtykh
>             Fix For: 1.8
>
>
> {{GridUnsafeLru.offer(..)}} method uses atomic integer as a counter. In case of integer overflow this method will throw {{ArrayIndexOutOfBoundsException}}.
> We should use {{abs}} to avoid this. For example, like this:
> {code}
> return lrus[U.safeAbs(addIdx.getAndIncrement()) % cnt].offer(part, addr, hash);
> {code}



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