[jira] [Resolved] (LANG-1500) Test may fail due to a different order of fields returned by reflection api

["Gary D. Gregory (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LANG-1500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary D. Gregory resolved LANG-1500.
-----------------------------------
    Fix Version/s: 3.10
       Resolution: Fixed

In git master, please verify and close.

> Test may fail due to a different order of fields returned by reflection api
> ---------------------------------------------------------------------------
>
>                 Key: LANG-1500
>                 URL: https://issues.apache.org/jira/browse/LANG-1500
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.builder.*
>    Affects Versions: 3.8, 3.9, 3.8.1
>            Reporter: contextshuffling
>            Priority: Minor
>             Fix For: 3.10
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Tests in _HashCodeBuilderTest_ depends on _HashCodeBuilder.reflectionHashCode_. The logic of _reflectionHashCode_ appends the fields returned by *_java.lang.Class.getDeclaredFields_*. The order of fields being appended will affect the calculated HashCode.
> However, _*java.lang.Class.getDeclaredFields*_ does not guarantee any specific order and thus, test can fail if the order is different, (i.e., it generates a different hash code). "The elements in the returned array are not sorted and are not in any particular order" (reference: [https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#getDeclaredMethods--)|https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#getDeclaredMethods--]
>  
> This affects _HashCodeBuilderTest.testReflectionHashCodeExcludeFields_ and _HashCodeBuilderTest.testReflectionHierarchyHashCode_ as they depend on the order of fields returned by the api. 
>  
>  



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