[jira] [Updated] (JCR-3156) Group#getMembers may list inherited members multiple times

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

     [ https://issues.apache.org/jira/browse/JCR-3156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

angela updated JCR-3156:
------------------------

    Attachment: JCR-3156.patch

test case illustrating the problem
                
> Group#getMembers may list inherited members multiple times
> ----------------------------------------------------------
>
>                 Key: JCR-3156
>                 URL: https://issues.apache.org/jira/browse/JCR-3156
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core, security
>    Affects Versions: 2.2, 2.3
>            Reporter: angela
>             Fix For: 2.4
>
>         Attachments: JCR-3156.patch
>
>
> i just happen to detect the following regression that seems to be introduces quite a while ago:
> Group#getMembers is defined to return all group members including those inherited by another group being member of that group.
> Example:
> User t
> Group a : t is declared member
> Group b : t is declared member
> Group c : a, b are declared members
> The expected result of Group.getMembers was: a, b and t.
> What is currently happening is that t is included twice in the returned iterator.
> Quickly testing on jackrabbit 2.0 revealed that this used to work before...
> I didn't carefully check when that bug has been introduced but the the refactoring of the membership
> collections seems to be a possible culprit.

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