[jira] [Commented] (LANG-1034) Add support for recursive comparison to EqualsBuilder#reflectionEquals

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LANG-1034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16189837#comment-16189837 ] 

ASF GitHub Bot commented on LANG-1034:
--------------------------------------

Github user douddle commented on the issue:

    https://github.com/apache/commons-lang/pull/202
  
    I start to use your feature and I discover a bug.
    String are now compared with internal data (hash and char[]). But sometimes hash value is not initialized, this is probably a cache for the hashcode. So the comparison fails even if the char[] content is the same.


> Add support for recursive comparison to EqualsBuilder#reflectionEquals
> ----------------------------------------------------------------------
>
>                 Key: LANG-1034
>                 URL: https://issues.apache.org/jira/browse/LANG-1034
>             Project: Commons Lang
>          Issue Type: Improvement
>          Components: lang.builder.*
>            Reporter: Duncan Jones
>            Assignee: Pascal Schumacher
>             Fix For: 3.6
>
>         Attachments: LANG-1034.1.patch
>
>
> The current implementation of {{EqualsBuilder.reflectionEquals()}} uses object equality to test reference fields found in the class. It may be helpful to offer a method that recursively builds {{.equals()}} methods for each field and uses that to perform the comparison.
> This functionality could be further extended by accepting a list of classes to include/exclude. Classes that are excluded would use the normal object equality.



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