[jira] [Resolved] (MATH-793) OrderedTuple#hashCode() uses casting instead of boxing

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

     [ https://issues.apache.org/jira/browse/MATH-793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebb resolved MATH-793.
-----------------------

    Resolution: Fixed
    
> OrderedTuple#hashCode() uses casting instead of boxing
> ------------------------------------------------------
>
>                 Key: MATH-793
>                 URL: https://issues.apache.org/jira/browse/MATH-793
>             Project: Commons Math
>          Issue Type: Bug
>         Environment: OrderedTuple#hashCode() is as follows:
> {code}
> public int hashCode() {
>     return Arrays.hashCode(components)   ^
>            ((Integer) offset).hashCode() ^
>            ((Integer) lsb).hashCode()    ^
>            ((Boolean) posInf).hashCode() ^
>            ((Boolean) negInf).hashCode() ^
>            ((Boolean) nan).hashCode();
> }
> {code}
> This is not the correct way to convert primitives to their object equivalents.
> {code}
> ((Integer) x).hashCode() == x
> Boolean#hashCode() is defined as
> value ? 1231 : 1237
> {code}
> Note that this error won't be found unless the compiler emits warnings for boxing.
>            Reporter: Sebb
>             Fix For: 3.1
>
>


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